# Ero Confirms High-Grade Continuity and Extends Known Mineralization at Furnas with Significant New Step-Out Intercepts Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5 Original source: https://money.tmx.com/en/quote/ERO/news/8130959289267311/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi Publisher: tmx Original announcement: 2026-06-10T10:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Ero Copper Corp. - Ticker: ERO - Exchange: TSX - Region: Pará State, Brazil - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Drill results, Resource update - Extracted: 2026-09-13 22:57:59 UTC Narrative sentiment: 0.90 · Bullish ## Minestarters Atlas summary Ero Copper Corp. announced high-grade drill results from its Furnas Copper-Gold Project in Brazil, including significant step-out intercepts that extend known mineralization and infill drilling confirming continuity. The program, totaling 24,000 meters, identified new exploration potential and supports the conversion of inferred resources to higher confidence categories. The company is advancing the project towards a Pre-Feasibility Study, with ongoing permitting, metallurgical testwork, and engineering studies. Reasoning: The drill program at Furnas delivered strong high-grade copper-gold-silver intercepts, successfully extending known mineralization through significant step-out holes and confirming continuity with infill drilling, supporting future resource upgrades and project development. The extensive QA/QC disclosure enhances confidence in the results. - Positive factor: High-grade copper-gold-silver intercepts, including bonanza grades in sub-intervals. - Positive factor: Significant step-out drilling extending mineralization down-dip and along strike, including a new zone of exploration potential. - Positive factor: Infill drilling confirms high-grade continuity and supports resource conversion. - Positive factor: Extensive QA/QC program with certified lab and QP sign-off. - Positive factor: Metal equivalent assumptions are fully disclosed. - Negative factor: True width not disclosed for any intercepts, which may overstate actual thickness. - Negative factor: Cut-off grade used for compositing drill intervals is not explicitly stated. Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 290 ## Classification and evidence No classification tags are available. ## Extracted facts Stored fact records: 290. Some facts used in scoring do not have a stored record. ## Drill Results (290) ### FURN-DD-00357 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-0) Furnas · copper #### Identity - Hole ID: FURN-DD-00357 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.74 - Grade Unit: % - Intercept: 90 m - From: 726 m - To: 816 m - Hole Depth: 867.8 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00357:726-816 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612527 - Northing: 9346582 - Elevation: 292 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.13 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept represents a strong copper-equivalent grade over a significant width in a step-out hole, extending the known mineralization and indicating good growth potential for the project. - Positive factor: Strong copper grade \(0.74%\) over a significant width \(90m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.13%\) indicates good polymetallic value. - Positive factor: Step-out hole extending mineralization down-dip, demonstrating growth potential. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.74 Context: 90 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00357 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-1) Furnas · gold #### Identity - Hole ID: FURN-DD-00357 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.5 - Grade Unit: g/t - Intercept: 90 m - From: 726 m - To: 816 m - Hole Depth: 867.8 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00357:726-816 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612527 - Northing: 9346582 - Elevation: 292 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.13 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept, while not bonanza grade, is significant over a large width and contributes positively to the polymetallic nature of the deposit, supporting the overall step-out success. - Positive factor: Good gold grade \(0.50 g/t\) over a significant width \(90m\) for an IOCG deposit. - Positive factor: Part of a polymetallic intercept contributing to overall project value. - Positive factor: Step-out hole extending mineralization down-dip. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.50 Context: 90 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00357 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-2) Furnas · silver #### Identity - Hole ID: FURN-DD-00357 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.18 - Grade Unit: g/t - Intercept: 90 m - From: 726 m - To: 816 m - Hole Depth: 867.8 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00357:726-816 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612527 - Northing: 9346582 - Elevation: 292 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.13 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade adds to the overall value of this significant polymetallic intercept, supporting the positive step-out results. - Positive factor: Silver grade \(3.18 g/t\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a significant step-out hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 3.18 Context: 90 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00357 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-3) Furnas · copper #### Identity - Hole ID: FURN-DD-00357 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.17 - Grade Unit: % - Intercept: 32 m - From: 726 m - To: 758 m - Hole Depth: 867.8 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00357:726-758 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612527 - Northing: 9346582 - Elevation: 292 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.7 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows exceptional copper and copper-equivalent grades over a strong width, confirming a high-grade core within the significant step-out intercept and enhancing the overall project potential. - Positive factor: Exceptional copper grade \(1.17%\) over a strong width \(32m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(1.70%\) indicates significant polymetallic value. - Positive factor: Sub-interval within a key step-out hole, highlighting high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.17 Context: 32 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00357 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-4) Furnas · gold #### Identity - Hole ID: FURN-DD-00357 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.68 - Grade Unit: g/t - Intercept: 32 m - From: 726 m - To: 758 m - Hole Depth: 867.8 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00357:726-758 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612527 - Northing: 9346582 - Elevation: 292 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes significantly to the high-grade nature of the sub-interval, reinforcing the positive implications of the step-out drilling. - Positive factor: Strong gold grade \(0.68 g/t\) over a good width \(32m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within a significant step-out hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.68 Context: 32 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00357 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-5) Furnas · silver #### Identity - Hole ID: FURN-DD-00357 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 5.4 - Grade Unit: g/t - Intercept: 32 m - From: 726 m - To: 758 m - Hole Depth: 867.8 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00357:726-758 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612527 - Northing: 9346582 - Elevation: 292 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting the positive step-out results. - Positive factor: Silver grade \(5.40 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a significant step-out hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 5.40 Context: 32 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00354 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-6) Furnas · copper #### Identity - Hole ID: FURN-DD-00354 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.98 - Grade Unit: % - Intercept: 45 m - From: 459 m - To: 504 m - Hole Depth: 588.3 m - Intercept Depth: 459 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00354:459-504 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.25 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept represents a strong copper-equivalent grade over a good width in a high-grade step-out hole, significantly extending mineralization beyond the inferred resource limit. - Positive factor: Strong copper grade \(0.98%\) over a good width \(45m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.25%\) indicates good polymetallic value. - Positive factor: High-grade step-out intercept extending mineralization beyond inferred resources. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.98 Context: 45 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00354 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-7) Furnas · gold #### Identity - Hole ID: FURN-DD-00354 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.36 - Grade Unit: g/t - Intercept: 45 m - From: 459 m - To: 504 m - Hole Depth: 588.3 m - Intercept Depth: 459 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00354:459-504 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.25 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept adds to the overall value of the polymetallic step-out, supporting the positive results. - Positive factor: Gold grade \(0.36 g/t\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a significant step-out hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.36 Context: 45 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00354 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-8) Furnas · silver #### Identity - Hole ID: FURN-DD-00354 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.72 - Grade Unit: g/t - Intercept: 45 m - From: 459 m - To: 504 m - Hole Depth: 588.3 m - Intercept Depth: 459 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00354:459-504 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.25 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic step-out, further supporting the positive results. - Positive factor: Silver grade \(1.72 g/t\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a significant step-out hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.72 Context: 45 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00354 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-9) Furnas · copper #### Identity - Hole ID: FURN-DD-00354 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.78 - Grade Unit: % - Intercept: 20 m - From: 484 m - To: 504 m - Hole Depth: 588.3 m - Intercept Depth: 459 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00354:484-504 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.98 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows exceptional copper and copper-equivalent grades over a strong width, confirming a high-grade core within the significant step-out intercept and enhancing the overall project potential. - Positive factor: Exceptional copper grade \(1.78%\) over a strong width \(20m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(1.98%\) indicates significant polymetallic value. - Positive factor: Sub-interval within a key step-out hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.78 Context: 20 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00354 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-10) Furnas · gold #### Identity - Hole ID: FURN-DD-00354 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.25 - Grade Unit: g/t - Intercept: 20 m - From: 484 m - To: 504 m - Hole Depth: 588.3 m - Intercept Depth: 459 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00354:484-504 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept adds to the overall value of the high-grade sub-interval, reinforcing the positive implications of the step-out drilling. - Positive factor: Gold grade \(0.25 g/t\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a high-grade sub-interval within a significant step-out hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.25 Context: 20 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00354 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-11) Furnas · silver #### Identity - Hole ID: FURN-DD-00354 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.12 - Grade Unit: g/t - Intercept: 20 m - From: 484 m - To: 504 m - Hole Depth: 588.3 m - Intercept Depth: 459 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00354:484-504 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting the positive step-out results. - Positive factor: Silver grade \(3.12 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a significant step-out hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 3.12 Context: 20 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00368 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-12) Furnas · copper #### Identity - Hole ID: FURN-DD-00368 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.94 - Grade Unit: % - Intercept: 41 m - From: 380 m - To: 421 m - Hole Depth: 483.9 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00368:380-421 - Mining Method: mixed #### Location - Location: Central zone - Easting: 610224 - Northing: 9347214 - Elevation: 359 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.28 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept represents a strong copper-equivalent grade over a good width, crucially identifying a new zone of exploration potential in the Central zone, which is highly novel and material for project expansion. - Positive factor: Strong copper grade \(0.94%\) over a good width \(41m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.28%\) indicates good polymetallic value. - Positive factor: Highlights a new zone of exploration potential in the Central zone, significantly expanding the project footprint. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.94 Context: 41 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00368 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-13) Furnas · gold #### Identity - Hole ID: FURN-DD-00368 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.44 - Grade Unit: g/t - Intercept: 41 m - From: 380 m - To: 421 m - Hole Depth: 483.9 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00368:380-421 - Mining Method: mixed #### Location - Location: Central zone - Easting: 610224 - Northing: 9347214 - Elevation: 359 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.28 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the new Central zone discovery, reinforcing its significance. - Positive factor: Good gold grade \(0.44 g/t\) over a good width \(41m\) for an IOCG deposit. - Positive factor: Part of a polymetallic intercept contributing to overall project value. - Positive factor: Highlights a new zone of exploration potential in the Central zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.44 Context: 41 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00368 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-14) Furnas · silver #### Identity - Hole ID: FURN-DD-00368 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.58 - Grade Unit: g/t - Intercept: 41 m - From: 380 m - To: 421 m - Hole Depth: 483.9 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00368:380-421 - Mining Method: mixed #### Location - Location: Central zone - Easting: 610224 - Northing: 9347214 - Elevation: 359 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.28 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic intercept in the newly identified Central zone, supporting its significance. - Positive factor: Silver grade \(1.58 g/t\) contributes to the polymetallic nature of the intercept. - Positive factor: Highlights a new zone of exploration potential in the Central zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.58 Context: 41 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00368 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-15) Furnas · copper #### Identity - Hole ID: FURN-DD-00368 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.87 - Grade Unit: % - Intercept: 16 m - From: 380 m - To: 396 m - Hole Depth: 483.9 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00368:380-396 - Mining Method: mixed #### Location - Location: Central zone - Easting: 610224 - Northing: 9347214 - Elevation: 359 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.53 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows very high copper-equivalent grades over a good width, confirming a high-grade core within the new Central zone discovery and enhancing its overall potential. - Positive factor: Strong copper grade \(0.87%\) over a good width \(16m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(1.53%\) indicates significant polymetallic value. - Positive factor: Sub-interval within a new zone of exploration potential, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.87 Context: 16 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00368 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-16) Furnas · gold #### Identity - Hole ID: FURN-DD-00368 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.89 - Grade Unit: g/t - Intercept: 16 m - From: 380 m - To: 396 m - Hole Depth: 483.9 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00368:380-396 - Mining Method: mixed #### Location - Location: Central zone - Easting: 610224 - Northing: 9347214 - Elevation: 359 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows strong grades within a high-grade sub-interval, reinforcing the positive implications of the new Central zone discovery. - Positive factor: Strong gold grade \(0.89 g/t\) over a good width \(16m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within a new zone of exploration potential. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.89 Context: 16 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00368 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-17) Furnas · silver #### Identity - Hole ID: FURN-DD-00368 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.52 - Grade Unit: g/t - Intercept: 16 m - From: 380 m - To: 396 m - Hole Depth: 483.9 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00368:380-396 - Mining Method: mixed #### Location - Location: Central zone - Easting: 610224 - Northing: 9347214 - Elevation: 359 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval in the newly identified Central zone, supporting its significance. - Positive factor: Silver grade \(1.52 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a new zone of exploration potential. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.52 Context: 16 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00340 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-18) Furnas · copper #### Identity - Hole ID: FURN-DD-00340 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.81 - Grade Unit: % - Intercept: 88 m - From: 548 m - To: 636 m - Hole Depth: 717.2 m - Intercept Depth: 548 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00340:548-636 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612179 - Northing: 9346705 - Elevation: 322 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.29 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This infill intercept shows strong copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone and supporting resource conversion efforts. - Positive factor: Strong copper grade \(0.81%\) over a significant width \(88m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.29%\) indicates good polymetallic value. - Positive factor: Infill drilling demonstrating high-grade continuity, supporting resource conversion. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.81 Context: 88 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00340 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-19) Furnas · gold #### Identity - Hole ID: FURN-DD-00340 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.61 - Grade Unit: g/t - Intercept: 88 m - From: 548 m - To: 636 m - Hole Depth: 717.2 m - Intercept Depth: 548 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00340:548-636 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612179 - Northing: 9346705 - Elevation: 322 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.29 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity and resource conversion. - Positive factor: Good gold grade \(0.61 g/t\) over a significant width \(88m\) for an IOCG deposit. - Positive factor: Part of a polymetallic infill intercept contributing to overall project value. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.61 Context: 88 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00340 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-20) Furnas · silver #### Identity - Hole ID: FURN-DD-00340 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.75 - Grade Unit: g/t - Intercept: 88 m - From: 548 m - To: 636 m - Hole Depth: 717.2 m - Intercept Depth: 548 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00340:548-636 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612179 - Northing: 9346705 - Elevation: 322 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.29 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(3.75 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 3.75 Context: 88 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00340 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-21) Furnas · copper #### Identity - Hole ID: FURN-DD-00340 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.25 - Grade Unit: % - Intercept: 27 m - From: 601 m - To: 628 m - Hole Depth: 717.2 m - Intercept Depth: 548 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00340:601-628 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612179 - Northing: 9346705 - Elevation: 322 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.86 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows exceptional copper and copper-equivalent grades over a strong width, confirming a high-grade core within the infill intercept and reinforcing resource conversion potential. - Positive factor: Exceptional copper grade \(1.25%\) over a strong width \(27m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(1.86%\) indicates significant polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.25 Context: 27 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00340 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-22) Furnas · gold #### Identity - Hole ID: FURN-DD-00340 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.77 - Grade Unit: g/t - Intercept: 27 m - From: 601 m - To: 628 m - Hole Depth: 717.2 m - Intercept Depth: 548 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00340:601-628 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612179 - Northing: 9346705 - Elevation: 322 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows strong grades within a high-grade sub-interval, reinforcing the positive implications of the infill drilling for resource conversion. - Positive factor: Strong gold grade \(0.77 g/t\) over a good width \(27m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within a key infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.77 Context: 27 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00340 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-23) Furnas · silver #### Identity - Hole ID: FURN-DD-00340 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 6.06 - Grade Unit: g/t - Intercept: 27 m - From: 601 m - To: 628 m - Hole Depth: 717.2 m - Intercept Depth: 548 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00340:601-628 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612179 - Northing: 9346705 - Elevation: 322 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting high-grade continuity for resource conversion. - Positive factor: Silver grade \(6.06 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 6.06 Context: 27 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-24) Furnas · copper #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.65 - Grade Unit: % - Intercept: 65 m - From: 458 m - To: 523 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:458-523 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This infill intercept shows good copper-equivalent grades over a significant width, supporting resource growth potential at the edge of the NW zone. - Positive factor: Good copper grade \(0.65%\) over a significant width \(65m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.97%\) indicates good polymetallic value. - Positive factor: Infill drilling supporting future resource growth potential at the northwestern edge of the NW zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.65 Context: 65 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-25) Furnas · gold #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.42 - Grade Unit: g/t - Intercept: 65 m - From: 458 m - To: 523 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:458-523 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting resource growth potential. - Positive factor: Gold grade \(0.42 g/t\) over a significant width \(65m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole supporting resource growth potential. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.42 Context: 65 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-26) Furnas · silver #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.3 - Grade Unit: g/t - Intercept: 65 m - From: 458 m - To: 523 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:458-523 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting resource growth potential. - Positive factor: Silver grade \(1.30 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole supporting resource growth potential. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.30 Context: 65 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-27) Furnas · copper #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.78 - Grade Unit: % - Intercept: 26 m - From: 458 m - To: 484 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:458-484 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.18 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows strong copper-equivalent grades over a good width, confirming a high-grade core within the infill intercept and reinforcing resource growth potential. - Positive factor: Strong copper grade \(0.78%\) over a good width \(26m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.18%\) indicates good polymetallic value. - Positive factor: Sub-interval within an infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.78 Context: 26 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-28) Furnas · gold #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.42 - Grade Unit: g/t - Intercept: 26 m - From: 458 m - To: 484 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:458-484 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the high-grade sub-interval, reinforcing resource growth potential. - Positive factor: Gold grade \(0.42 g/t\) over a good width \(26m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a high-grade sub-interval within an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.42 Context: 26 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-29) Furnas · silver #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.3 - Grade Unit: g/t - Intercept: 26 m - From: 458 m - To: 484 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:458-484 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting resource growth potential. - Positive factor: Silver grade \(1.30 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of an infill hole supporting resource growth potential. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.30 Context: 26 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-30) Furnas · copper #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.67 - Grade Unit: % - Intercept: 12 m - From: 511 m - To: 523 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:511-523 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.6 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows very high copper-equivalent grades over a moderate width, confirming a high-grade core within the infill intercept and reinforcing resource growth potential. - Positive factor: Good copper grade \(0.67%\) over a moderate width \(12m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(1.60%\) indicates significant polymetallic value. - Positive factor: Sub-interval within an infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.67 Context: 12 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-31) Furnas · gold #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.65 - Grade Unit: g/t - Intercept: 12 m - From: 511 m - To: 523 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:511-523 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows strong grades within a high-grade sub-interval, reinforcing the positive implications of the infill drilling for resource growth potential. - Positive factor: Strong gold grade \(0.65 g/t\) over a moderate width \(12m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.65 Context: 12 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-32) Furnas · silver #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.12 - Grade Unit: g/t - Intercept: 12 m - From: 511 m - To: 523 m - Hole Depth: 709.4 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:511-523 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting resource growth potential. - Positive factor: Silver grade \(2.12 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of an infill hole supporting resource growth potential. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.12 Context: 12 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-33) Furnas · copper #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.97 - Grade Unit: % - Intercept: 15 m - From: 103 m - To: 118 m - Hole Depth: 709.4 m - Intercept Depth: 103 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:103-118 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 3.05 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This shallow intercept shows exceptional copper and copper-equivalent grades over a good width, representing a bonanza grade and enhancing the overall resource growth potential. - Positive factor: Exceptional copper grade \(2.97%\) over a good width \(15m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(3.05%\) indicates significant polymetallic value. - Positive factor: Shallow intercept, potentially favorable for early mining. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.97 Context: 15 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-34) Furnas · gold #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0 - Grade Unit: g/t - Intercept: 15 m - From: 103 m - To: 118 m - Hole Depth: 709.4 m - Intercept Depth: 103 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:103-118 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: While the overall intercept is high-grade, the absence of gold grade in this specific interval is a minor negative, though it doesn't detract significantly from the copper and silver value. - Positive factor: Part of a high-grade copper-silver intercept. - Negative factor: No gold grade reported \(0.00 g/t\). - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.00 Context: 15 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00348 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-35) Furnas · silver #### Identity - Hole ID: FURN-DD-00348 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 11.81 - Grade Unit: g/t - Intercept: 15 m - From: 103 m - To: 118 m - Hole Depth: 709.4 m - Intercept Depth: 103 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00348:103-118 - Mining Method: mixed #### Location - Location: NW zone - Easting: 607884 - Northing: 9348216 - Elevation: 232 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The strong silver grade significantly enhances the overall value of this high-grade copper-silver intercept, contributing to the bonanza grade. - Positive factor: Strong silver grade \(11.81 g/t\) adds significantly to the polymetallic value of the intercept. - Positive factor: Part of a high-grade copper-silver intercept. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 11.81 Context: 15 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00333 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-36) Furnas · copper #### Identity - Hole ID: FURN-DD-00333 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.89 - Grade Unit: % - Intercept: 51 m - From: 544 m - To: 595 m - Hole Depth: 627.7 m - Intercept Depth: 544 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00333:544-595 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612555 - Northing: 9346228 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.4 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows strong copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone. - Positive factor: Strong copper grade \(0.89%\) over a significant width \(51m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.40%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.89 Context: 51 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00333 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-37) Furnas · gold #### Identity - Hole ID: FURN-DD-00333 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.67 - Grade Unit: g/t - Intercept: 51 m - From: 544 m - To: 595 m - Hole Depth: 627.7 m - Intercept Depth: 544 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00333:544-595 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612555 - Northing: 9346228 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.4 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes significantly to the high-grade polymetallic nature of the intercept, confirming continuity. - Positive factor: Strong gold grade \(0.67 g/t\) over a significant width \(51m\) for an IOCG deposit. - Positive factor: Part of a polymetallic intercept contributing to overall project value. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.67 Context: 51 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00333 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-38) Furnas · silver #### Identity - Hole ID: FURN-DD-00333 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.63 - Grade Unit: g/t - Intercept: 51 m - From: 544 m - To: 595 m - Hole Depth: 627.7 m - Intercept Depth: 544 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00333:544-595 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612555 - Northing: 9346228 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.4 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(2.63 g/t\) adds to the polymetallic value of the intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.63 Context: 51 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00333 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-39) Furnas · copper #### Identity - Hole ID: FURN-DD-00333 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.04 - Grade Unit: % - Intercept: 21 m - From: 574 m - To: 595 m - Hole Depth: 627.7 m - Intercept Depth: 544 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00333:574-595 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612555 - Northing: 9346228 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.62 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows exceptional copper and copper-equivalent grades over a strong width, confirming a high-grade core within the infill intercept and reinforcing resource conversion potential. - Positive factor: Exceptional copper grade \(1.04%\) over a strong width \(21m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(1.62%\) indicates significant polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.04 Context: 21 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00333 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-40) Furnas · gold #### Identity - Hole ID: FURN-DD-00333 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.77 - Grade Unit: g/t - Intercept: 21 m - From: 574 m - To: 595 m - Hole Depth: 627.7 m - Intercept Depth: 544 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00333:574-595 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612555 - Northing: 9346228 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows strong grades within a high-grade sub-interval, reinforcing the positive implications of the infill drilling for resource conversion. - Positive factor: Strong gold grade \(0.77 g/t\) over a good width \(21m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within a key infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.77 Context: 21 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00333 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-41) Furnas · silver #### Identity - Hole ID: FURN-DD-00333 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.41 - Grade Unit: g/t - Intercept: 21 m - From: 574 m - To: 595 m - Hole Depth: 627.7 m - Intercept Depth: 544 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00333:574-595 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612555 - Northing: 9346228 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting high-grade continuity for resource conversion. - Positive factor: Silver grade \(2.41 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.41 Context: 21 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00334 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-42) Furnas · copper #### Identity - Hole ID: FURN-DD-00334 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.56 - Grade Unit: % - Intercept: 66 m - From: 562 m - To: 628 m - Hole Depth: 703.9 m - Intercept Depth: 562 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00334:562-628 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612516 - Northing: 9346315 - Elevation: 324 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.77 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows moderate copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone. - Positive factor: Moderate copper grade \(0.56%\) over a significant width \(66m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.77%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.56 Context: 66 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00334 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-43) Furnas · gold #### Identity - Hole ID: FURN-DD-00334 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.27 - Grade Unit: g/t - Intercept: 66 m - From: 562 m - To: 628 m - Hole Depth: 703.9 m - Intercept Depth: 562 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00334:562-628 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612516 - Northing: 9346315 - Elevation: 324 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.77 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity. - Positive factor: Moderate gold grade \(0.27 g/t\) over a significant width \(66m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.27 Context: 66 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00334 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-44) Furnas · silver #### Identity - Hole ID: FURN-DD-00334 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.07 - Grade Unit: g/t - Intercept: 66 m - From: 562 m - To: 628 m - Hole Depth: 703.9 m - Intercept Depth: 562 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00334:562-628 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612516 - Northing: 9346315 - Elevation: 324 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.77 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(2.07 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.07 Context: 66 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00334 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-45) Furnas · copper #### Identity - Hole ID: FURN-DD-00334 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.85 - Grade Unit: % - Intercept: 14 m - From: 585 m - To: 599 m - Hole Depth: 703.9 m - Intercept Depth: 562 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00334:585-599 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612516 - Northing: 9346315 - Elevation: 324 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.23 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows strong copper-equivalent grades over a moderate width, confirming a high-grade core within the infill intercept and reinforcing resource conversion potential. - Positive factor: Strong copper grade \(0.85%\) over a moderate width \(14m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.23%\) indicates good polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.85 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00334 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-46) Furnas · gold #### Identity - Hole ID: FURN-DD-00334 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.48 - Grade Unit: g/t - Intercept: 14 m - From: 585 m - To: 599 m - Hole Depth: 703.9 m - Intercept Depth: 562 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00334:585-599 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612516 - Northing: 9346315 - Elevation: 324 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows good grades within a high-grade sub-interval, reinforcing the positive implications of the infill drilling for resource conversion. - Positive factor: Good gold grade \(0.48 g/t\) over a moderate width \(14m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within a key infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.48 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00334 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-47) Furnas · silver #### Identity - Hole ID: FURN-DD-00334 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.65 - Grade Unit: g/t - Intercept: 14 m - From: 585 m - To: 599 m - Hole Depth: 703.9 m - Intercept Depth: 562 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00334:585-599 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612516 - Northing: 9346315 - Elevation: 324 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting high-grade continuity for resource conversion. - Positive factor: Silver grade \(3.65 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 3.65 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00337 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-48) Furnas · copper #### Identity - Hole ID: FURN-DD-00337 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.63 - Grade Unit: % - Intercept: 39 m - From: 305 m - To: 344 m - Hole Depth: 417 m - Intercept Depth: 305 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00337:305-344 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612459 - Northing: 9346016 - Elevation: 333 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.91 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows good copper-equivalent grades over a good width, confirming high-grade continuity within the SE zone. - Positive factor: Good copper grade \(0.63%\) over a good width \(39m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.91%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.63 Context: 39 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00337 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-49) Furnas · gold #### Identity - Hole ID: FURN-DD-00337 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.37 - Grade Unit: g/t - Intercept: 39 m - From: 305 m - To: 344 m - Hole Depth: 417 m - Intercept Depth: 305 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00337:305-344 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612459 - Northing: 9346016 - Elevation: 333 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.91 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity. - Positive factor: Good gold grade \(0.37 g/t\) over a good width \(39m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.37 Context: 39 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00337 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-50) Furnas · silver #### Identity - Hole ID: FURN-DD-00337 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.39 - Grade Unit: g/t - Intercept: 39 m - From: 305 m - To: 344 m - Hole Depth: 417 m - Intercept Depth: 305 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00337:305-344 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612459 - Northing: 9346016 - Elevation: 333 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.91 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(2.39 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.39 Context: 39 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00337 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-51) Furnas · copper #### Identity - Hole ID: FURN-DD-00337 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.83 - Grade Unit: % - Intercept: 10 m - From: 314 m - To: 324 m - Hole Depth: 417 m - Intercept Depth: 305 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00337:314-324 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612459 - Northing: 9346016 - Elevation: 333 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.23 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows strong copper-equivalent grades over a moderate width, confirming a high-grade core within the infill intercept and reinforcing resource conversion potential. - Positive factor: Strong copper grade \(0.83%\) over a moderate width \(10m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.23%\) indicates good polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.83 Context: 10 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00337 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-52) Furnas · gold #### Identity - Hole ID: FURN-DD-00337 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.52 - Grade Unit: g/t - Intercept: 10 m - From: 314 m - To: 324 m - Hole Depth: 417 m - Intercept Depth: 305 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00337:314-324 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612459 - Northing: 9346016 - Elevation: 333 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows good grades within a high-grade sub-interval, reinforcing the positive implications of the infill drilling for resource conversion. - Positive factor: Good gold grade \(0.52 g/t\) over a moderate width \(10m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within a key infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.52 Context: 10 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00337 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-53) Furnas · silver #### Identity - Hole ID: FURN-DD-00337 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.21 - Grade Unit: g/t - Intercept: 10 m - From: 314 m - To: 324 m - Hole Depth: 417 m - Intercept Depth: 305 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00337:314-324 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612459 - Northing: 9346016 - Elevation: 333 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting high-grade continuity for resource conversion. - Positive factor: Silver grade \(3.21 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 3.21 Context: 10 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00338 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-54) Furnas · copper #### Identity - Hole ID: FURN-DD-00338 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.84 - Grade Unit: % - Intercept: 49 m - From: 362 m - To: 411 m - Hole Depth: 438.8 m - Intercept Depth: 362 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00338:362-411 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612480 - Northing: 9346085 - Elevation: 311 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.21 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows strong copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone. - Positive factor: Strong copper grade \(0.84%\) over a significant width \(49m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.21%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.84 Context: 49 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00338 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-55) Furnas · gold #### Identity - Hole ID: FURN-DD-00338 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.49 - Grade Unit: g/t - Intercept: 49 m - From: 362 m - To: 411 m - Hole Depth: 438.8 m - Intercept Depth: 362 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00338:362-411 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612480 - Northing: 9346085 - Elevation: 311 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.21 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity. - Positive factor: Good gold grade \(0.49 g/t\) over a significant width \(49m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.49 Context: 49 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00338 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-56) Furnas · silver #### Identity - Hole ID: FURN-DD-00338 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.09 - Grade Unit: g/t - Intercept: 49 m - From: 362 m - To: 411 m - Hole Depth: 438.8 m - Intercept Depth: 362 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00338:362-411 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612480 - Northing: 9346085 - Elevation: 311 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.21 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(2.09 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.09 Context: 49 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00338 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-57) Furnas · copper #### Identity - Hole ID: FURN-DD-00338 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.18 - Grade Unit: % - Intercept: 24 m - From: 371 m - To: 395 m - Hole Depth: 438.8 m - Intercept Depth: 362 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00338:371-395 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612480 - Northing: 9346085 - Elevation: 311 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.67 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows exceptional copper and copper-equivalent grades over a strong width, confirming a high-grade core within the infill intercept and reinforcing resource conversion potential. - Positive factor: Exceptional copper grade \(1.18%\) over a strong width \(24m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(1.67%\) indicates significant polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.18 Context: 24 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00338 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-58) Furnas · gold #### Identity - Hole ID: FURN-DD-00338 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: g/t - Intercept: 24 m - From: 371 m - To: 395 m - Hole Depth: 438.8 m - Intercept Depth: 362 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00338:371-395 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612480 - Northing: 9346085 - Elevation: 311 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows strong grades within a high-grade sub-interval, reinforcing the positive implications of the infill drilling for resource conversion. - Positive factor: Strong gold grade \(0.64 g/t\) over a good width \(24m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within a key infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.64 Context: 24 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00338 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-59) Furnas · silver #### Identity - Hole ID: FURN-DD-00338 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.99 - Grade Unit: g/t - Intercept: 24 m - From: 371 m - To: 395 m - Hole Depth: 438.8 m - Intercept Depth: 362 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00338:371-395 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612480 - Northing: 9346085 - Elevation: 311 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting high-grade continuity for resource conversion. - Positive factor: Silver grade \(2.99 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.99 Context: 24 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00339 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-60) Furnas · copper #### Identity - Hole ID: FURN-DD-00339 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.66 - Grade Unit: % - Intercept: 61 m - From: 479 m - To: 540 m - Hole Depth: 600.6 m - Intercept Depth: 479 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00339:479-540 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612609 - Northing: 9346139 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.96 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows good copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone. - Positive factor: Good copper grade \(0.66%\) over a significant width \(61m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.96%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.66 Context: 61 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00339 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-61) Furnas · gold #### Identity - Hole ID: FURN-DD-00339 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.39 - Grade Unit: g/t - Intercept: 61 m - From: 479 m - To: 540 m - Hole Depth: 600.6 m - Intercept Depth: 479 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00339:479-540 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612609 - Northing: 9346139 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.96 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity. - Positive factor: Good gold grade \(0.39 g/t\) over a significant width \(61m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.39 Context: 61 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00339 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-62) Furnas · silver #### Identity - Hole ID: FURN-DD-00339 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.02 - Grade Unit: g/t - Intercept: 61 m - From: 479 m - To: 540 m - Hole Depth: 600.6 m - Intercept Depth: 479 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00339:479-540 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612609 - Northing: 9346139 - Elevation: 313 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.96 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(2.02 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.02 Context: 61 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00344 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-63) Furnas · copper #### Identity - Hole ID: FURN-DD-00344 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.41 - Grade Unit: % - Intercept: 53 m - From: 513 m - To: 566 m - Hole Depth: 689.1 m - Intercept Depth: 513 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00344:513-566 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611789 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.52 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows moderate copper-equivalent grades over a significant width, confirming mineralization continuity within the SE zone. - Positive factor: Moderate copper grade \(0.41%\) over a significant width \(53m\) for an IOCG deposit. - Positive factor: Moderate CuEq grade \(0.52%\) indicates polymetallic value. - Positive factor: Confirms mineralization continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.41 Context: 53 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00344 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-64) Furnas · gold #### Identity - Hole ID: FURN-DD-00344 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.13 - Grade Unit: g/t - Intercept: 53 m - From: 513 m - To: 566 m - Hole Depth: 689.1 m - Intercept Depth: 513 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00344:513-566 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611789 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.52 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept is weak but contributes to the polymetallic nature of the infill drilling, supporting mineralization continuity. - Positive factor: Gold grade \(0.13 g/t\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: Weak gold grade for an IOCG deposit. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.13 Context: 53 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00344 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-65) Furnas · silver #### Identity - Hole ID: FURN-DD-00344 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.88 - Grade Unit: g/t - Intercept: 53 m - From: 513 m - To: 566 m - Hole Depth: 689.1 m - Intercept Depth: 513 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00344:513-566 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611789 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.52 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade is weak but enhances the overall value of this polymetallic infill intercept, further supporting mineralization continuity. - Positive factor: Silver grade \(0.88 g/t\) contributes to the polymetallic nature of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: Weak silver grade for an IOCG deposit. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.88 Context: 53 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00344 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-66) Furnas · copper #### Identity - Hole ID: FURN-DD-00344 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.82 - Grade Unit: % - Intercept: 5 m - From: 553 m - To: 558 m - Hole Depth: 689.1 m - Intercept Depth: 513 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00344:553-558 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611789 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.93 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows strong copper-equivalent grades over a narrow width, indicating a higher-grade zone within the infill intercept. - Positive factor: Strong copper grade \(0.82%\) over a narrow width \(5m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.93%\) indicates good polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a higher-grade zone. - Negative factor: Narrow intercept width. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.82 Context: 5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00344 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-67) Furnas · gold #### Identity - Hole ID: FURN-DD-00344 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.14 - Grade Unit: g/t - Intercept: 5 m - From: 553 m - To: 558 m - Hole Depth: 689.1 m - Intercept Depth: 513 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00344:553-558 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611789 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept is weak and narrow, but contributes to the polymetallic nature of the higher-grade sub-interval. - Positive factor: Gold grade \(0.14 g/t\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a higher-grade sub-interval. - Negative factor: Weak gold grade for an IOCG deposit. - Negative factor: Narrow intercept width. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.14 Context: 5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00344 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-68) Furnas · silver #### Identity - Hole ID: FURN-DD-00344 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.87 - Grade Unit: g/t - Intercept: 5 m - From: 553 m - To: 558 m - Hole Depth: 689.1 m - Intercept Depth: 513 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00344:553-558 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611789 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic higher-grade sub-interval, further supporting mineralization continuity. - Positive factor: Silver grade \(1.87 g/t\) adds to the polymetallic value of the higher-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: Narrow intercept width. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.87 Context: 5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00345 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-69) Furnas · copper #### Identity - Hole ID: FURN-DD-00345 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.5 - Grade Unit: % - Intercept: 84 m - From: 679 m - To: 763 m - Hole Depth: 845.7 m - Intercept Depth: 679 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00345:679-763 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612567 - Northing: 9346456 - Elevation: 306 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.73 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows moderate copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone. - Positive factor: Moderate copper grade \(0.50%\) over a significant width \(84m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.73%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.50 Context: 84 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00345 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-70) Furnas · gold #### Identity - Hole ID: FURN-DD-00345 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.29 - Grade Unit: g/t - Intercept: 84 m - From: 679 m - To: 763 m - Hole Depth: 845.7 m - Intercept Depth: 679 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00345:679-763 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612567 - Northing: 9346456 - Elevation: 306 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.73 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity. - Positive factor: Moderate gold grade \(0.29 g/t\) over a significant width \(84m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.29 Context: 84 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00345 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-71) Furnas · silver #### Identity - Hole ID: FURN-DD-00345 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.82 - Grade Unit: g/t - Intercept: 84 m - From: 679 m - To: 763 m - Hole Depth: 845.7 m - Intercept Depth: 679 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00345:679-763 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612567 - Northing: 9346456 - Elevation: 306 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.73 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(1.82 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.82 Context: 84 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00345 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-72) Furnas · copper #### Identity - Hole ID: FURN-DD-00345 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: % - Intercept: 20 m - From: 743 m - To: 763 m - Hole Depth: 845.7 m - Intercept Depth: 679 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00345:743-763 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612567 - Northing: 9346456 - Elevation: 306 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows good copper-equivalent grades over a strong width, indicating a higher-grade zone within the infill intercept. - Positive factor: Good copper grade \(0.64%\) over a strong width \(20m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(1.00%\) indicates good polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a higher-grade zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.64 Context: 20 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00345 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-73) Furnas · gold #### Identity - Hole ID: FURN-DD-00345 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.48 - Grade Unit: g/t - Intercept: 20 m - From: 743 m - To: 763 m - Hole Depth: 845.7 m - Intercept Depth: 679 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00345:743-763 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612567 - Northing: 9346456 - Elevation: 306 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows good grades within a higher-grade sub-interval, reinforcing the positive implications of the infill drilling. - Positive factor: Good gold grade \(0.48 g/t\) over a strong width \(20m\) for an IOCG deposit. - Positive factor: Part of a higher-grade sub-interval within an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.48 Context: 20 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00345 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-74) Furnas · silver #### Identity - Hole ID: FURN-DD-00345 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.84 - Grade Unit: g/t - Intercept: 20 m - From: 743 m - To: 763 m - Hole Depth: 845.7 m - Intercept Depth: 679 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00345:743-763 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612567 - Northing: 9346456 - Elevation: 306 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic higher-grade sub-interval, further supporting high-grade continuity. - Positive factor: Silver grade \(1.84 g/t\) adds to the polymetallic value of the higher-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.84 Context: 20 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00346 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-75) Furnas · copper #### Identity - Hole ID: FURN-DD-00346 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.65 - Grade Unit: % - Intercept: 63 m - From: 698 m - To: 761 m - Hole Depth: 818.9 m - Intercept Depth: 698 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00346:698-761 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612657 - Northing: 9346376 - Elevation: 295 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.94 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows good copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone. - Positive factor: Good copper grade \(0.65%\) over a significant width \(63m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.94%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.65 Context: 63 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00346 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-76) Furnas · gold #### Identity - Hole ID: FURN-DD-00346 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.38 - Grade Unit: g/t - Intercept: 63 m - From: 698 m - To: 761 m - Hole Depth: 818.9 m - Intercept Depth: 698 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00346:698-761 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612657 - Northing: 9346376 - Elevation: 295 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.94 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity. - Positive factor: Good gold grade \(0.38 g/t\) over a significant width \(63m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.38 Context: 63 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00346 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-77) Furnas · silver #### Identity - Hole ID: FURN-DD-00346 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.94 - Grade Unit: g/t - Intercept: 63 m - From: 698 m - To: 761 m - Hole Depth: 818.9 m - Intercept Depth: 698 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00346:698-761 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612657 - Northing: 9346376 - Elevation: 295 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.94 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade is weak but enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(0.94 g/t\) contributes to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: Weak silver grade for an IOCG deposit. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.94 Context: 63 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00346 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-78) Furnas · copper #### Identity - Hole ID: FURN-DD-00346 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.71 - Grade Unit: % - Intercept: 41 m - From: 720 m - To: 761 m - Hole Depth: 818.9 m - Intercept Depth: 698 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00346:720-761 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612657 - Northing: 9346376 - Elevation: 295 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.06 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows strong copper-equivalent grades over a good width, indicating a higher-grade zone within the infill intercept. - Positive factor: Strong copper grade \(0.71%\) over a good width \(41m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.06%\) indicates good polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a higher-grade zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.71 Context: 41 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00346 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-79) Furnas · gold #### Identity - Hole ID: FURN-DD-00346 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.47 - Grade Unit: g/t - Intercept: 41 m - From: 720 m - To: 761 m - Hole Depth: 818.9 m - Intercept Depth: 698 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00346:720-761 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612657 - Northing: 9346376 - Elevation: 295 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows good grades within a higher-grade sub-interval, reinforcing the positive implications of the infill drilling. - Positive factor: Good gold grade \(0.47 g/t\) over a good width \(41m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a higher-grade sub-interval within an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.47 Context: 41 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00346 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-80) Furnas · silver #### Identity - Hole ID: FURN-DD-00346 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2 - Grade Unit: g/t - Intercept: 41 m - From: 720 m - To: 761 m - Hole Depth: 818.9 m - Intercept Depth: 698 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00346:720-761 - Mining Method: mixed #### Location - Location: SE zone - Easting: 612657 - Northing: 9346376 - Elevation: 295 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic higher-grade sub-interval, further supporting high-grade continuity. - Positive factor: Silver grade \(2.00 g/t\) adds to the polymetallic value of the higher-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.00 Context: 41 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00347 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-81) Furnas · copper #### Identity - Hole ID: FURN-DD-00347 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.77 - Grade Unit: % - Intercept: 60 m - From: 473 m - To: 533 m - Hole Depth: 602.1 m - Intercept Depth: 473 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00347:473-533 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows good copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone. - Positive factor: Good copper grade \(0.77%\) over a significant width \(60m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.97%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.77 Context: 60 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00347 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-82) Furnas · gold #### Identity - Hole ID: FURN-DD-00347 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.26 - Grade Unit: g/t - Intercept: 60 m - From: 473 m - To: 533 m - Hole Depth: 602.1 m - Intercept Depth: 473 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00347:473-533 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity. - Positive factor: Moderate gold grade \(0.26 g/t\) over a significant width \(60m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.26 Context: 60 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00347 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-83) Furnas · silver #### Identity - Hole ID: FURN-DD-00347 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.58 - Grade Unit: g/t - Intercept: 60 m - From: 473 m - To: 533 m - Hole Depth: 602.1 m - Intercept Depth: 473 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00347:473-533 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(1.58 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.58 Context: 60 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00347 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-84) Furnas · copper #### Identity - Hole ID: FURN-DD-00347 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.43 - Grade Unit: % - Intercept: 14 m - From: 481 m - To: 495 m - Hole Depth: 602.1 m - Intercept Depth: 473 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00347:481-495 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.67 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows exceptional copper and copper-equivalent grades over a moderate width, confirming a high-grade core within the infill intercept and reinforcing resource conversion potential. - Positive factor: Exceptional copper grade \(1.43%\) over a moderate width \(14m\) for an IOCG deposit. - Positive factor: Very high CuEq grade \(1.67%\) indicates significant polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.43 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00347 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-85) Furnas · gold #### Identity - Hole ID: FURN-DD-00347 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 14 m - From: 481 m - To: 495 m - Hole Depth: 602.1 m - Intercept Depth: 473 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00347:481-495 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows moderate grades within a high-grade sub-interval, reinforcing the positive implications of the infill drilling for resource conversion. - Positive factor: Moderate gold grade \(0.30 g/t\) over a moderate width \(14m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a high-grade sub-interval within an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.30 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00347 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-86) Furnas · silver #### Identity - Hole ID: FURN-DD-00347 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.69 - Grade Unit: g/t - Intercept: 14 m - From: 481 m - To: 495 m - Hole Depth: 602.1 m - Intercept Depth: 473 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00347:481-495 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611668 - Northing: 9346757 - Elevation: 381 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this high-grade sub-interval, further supporting high-grade continuity for resource conversion. - Positive factor: Silver grade \(2.69 g/t\) adds to the polymetallic value of the high-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 2.69 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00351 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-87) Furnas · copper #### Identity - Hole ID: FURN-DD-00351 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.52 - Grade Unit: % - Intercept: 34 m - From: 509 m - To: 543 m - Hole Depth: 625 m - Intercept Depth: 509 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00351:509-543 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611788 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.74 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows moderate copper-equivalent grades over a good width, confirming mineralization continuity within the SE zone. - Positive factor: Moderate copper grade \(0.52%\) over a good width \(34m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.74%\) indicates good polymetallic value. - Positive factor: Confirms mineralization continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.52 Context: 34 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00351 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-88) Furnas · gold #### Identity - Hole ID: FURN-DD-00351 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.29 - Grade Unit: g/t - Intercept: 34 m - From: 509 m - To: 543 m - Hole Depth: 625 m - Intercept Depth: 509 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00351:509-543 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611788 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.74 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting mineralization continuity. - Positive factor: Moderate gold grade \(0.29 g/t\) over a good width \(34m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.29 Context: 34 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00351 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-89) Furnas · silver #### Identity - Hole ID: FURN-DD-00351 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.67 - Grade Unit: g/t - Intercept: 34 m - From: 509 m - To: 543 m - Hole Depth: 625 m - Intercept Depth: 509 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00351:509-543 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611788 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.74 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade is weak but enhances the overall value of this polymetallic infill intercept, further supporting mineralization continuity. - Positive factor: Silver grade \(0.67 g/t\) contributes to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: Weak silver grade for an IOCG deposit. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.67 Context: 34 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00351 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-90) Furnas · copper #### Identity - Hole ID: FURN-DD-00351 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.82 - Grade Unit: % - Intercept: 14 m - From: 511 m - To: 525 m - Hole Depth: 625 m - Intercept Depth: 509 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00351:511-525 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611788 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.06 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows strong copper-equivalent grades over a moderate width, indicating a higher-grade zone within the infill intercept. - Positive factor: Strong copper grade \(0.82%\) over a moderate width \(14m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.06%\) indicates good polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a higher-grade zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.82 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00351 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-91) Furnas · gold #### Identity - Hole ID: FURN-DD-00351 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.32 - Grade Unit: g/t - Intercept: 14 m - From: 511 m - To: 525 m - Hole Depth: 625 m - Intercept Depth: 509 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00351:511-525 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611788 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept shows moderate grades within a higher-grade sub-interval, reinforcing the positive implications of the infill drilling. - Positive factor: Moderate gold grade \(0.32 g/t\) over a moderate width \(14m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of a higher-grade sub-interval. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.32 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00351 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-92) Furnas · silver #### Identity - Hole ID: FURN-DD-00351 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.17 - Grade Unit: g/t - Intercept: 14 m - From: 511 m - To: 525 m - Hole Depth: 625 m - Intercept Depth: 509 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00351:511-525 - Mining Method: mixed #### Location - Location: SE zone - Easting: 611788 - Northing: 9346776 - Elevation: 350 m - Azimuth: 200 ° - Dip: 50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade is weak but enhances the overall value of this polymetallic higher-grade sub-interval, further supporting mineralization continuity. - Positive factor: Silver grade \(1.17 g/t\) adds to the polymetallic value of the higher-grade sub-interval. - Positive factor: Part of a significant infill hole. - Negative factor: Weak silver grade for an IOCG deposit. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.17 Context: 14 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00355 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-93) Furnas · copper #### Identity - Hole ID: FURN-DD-00355 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.61 - Grade Unit: % - Intercept: 74 m - From: 315 m - To: 389 m - Hole Depth: 507.1 m - Intercept Depth: 315 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00355:315-389 - Mining Method: mixed #### Location - Location: SE zone - Easting: 610494 - Northing: 9347052 - Elevation: 380 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.89 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This intercept shows good copper-equivalent grades over a significant width, confirming high-grade continuity within the SE zone. - Positive factor: Good copper grade \(0.61%\) over a significant width \(74m\) for an IOCG deposit. - Positive factor: Good CuEq grade \(0.89%\) indicates good polymetallic value. - Positive factor: Confirms high-grade continuity within the SE zone. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.61 Context: 74 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00355 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-94) Furnas · gold #### Identity - Hole ID: FURN-DD-00355 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.36 - Grade Unit: g/t - Intercept: 74 m - From: 315 m - To: 389 m - Hole Depth: 507.1 m - Intercept Depth: 315 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00355:315-389 - Mining Method: mixed #### Location - Location: SE zone - Easting: 610494 - Northing: 9347052 - Elevation: 380 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.89 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This gold intercept contributes positively to the polymetallic nature of the infill drilling, supporting high-grade continuity. - Positive factor: Good gold grade \(0.36 g/t\) over a significant width \(74m\) contributes to the polymetallic nature of the intercept. - Positive factor: Part of an infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.36 Context: 74 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00355 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-95) Furnas · silver #### Identity - Hole ID: FURN-DD-00355 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.5 - Grade Unit: g/t - Intercept: 74 m - From: 315 m - To: 389 m - Hole Depth: 507.1 m - Intercept Depth: 315 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00355:315-389 - Mining Method: mixed #### Location - Location: SE zone - Easting: 610494 - Northing: 9347052 - Elevation: 380 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 0.89 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: The silver grade enhances the overall value of this polymetallic infill intercept, further supporting high-grade continuity. - Positive factor: Silver grade \(1.50 g/t\) adds to the polymetallic value of the infill intercept. - Positive factor: Part of a significant infill hole. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 1.50 Context: 74 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00355 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-96) Furnas · copper #### Identity - Hole ID: FURN-DD-00355 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.97 - Grade Unit: % - Intercept: 20 m - From: 369 m - To: 389 m - Hole Depth: 507.1 m - Intercept Depth: 315 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00355:369-389 - Mining Method: mixed #### Location - Location: SE zone - Easting: 610494 - Northing: 9347052 - Elevation: 380 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Metal Eq. Grade: 1.35 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: This sub-interval shows strong copper-equivalent grades over a strong width, confirming a high-grade core within the infill intercept and reinforcing resource conversion potential. - Positive factor: Strong copper grade \(0.97%\) over a strong width \(20m\) for an IOCG deposit. - Positive factor: High CuEq grade \(1.35%\) indicates good polymetallic value. - Positive factor: Sub-interval within a key infill hole, highlighting a high-grade core. - Negative factor: True width not disclosed. - Negative factor: Cut-off grade for compositing not stated. Evidence · table > 0.97 Context: 20 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00355 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-97) Furnas · gold #### Identity - Hole ID: FURN-DD-00355 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.5 - Grade Unit: g/t - Intercept: 20 m - From: 369 m - To: 389 m - Hole Depth: 507.1 m - Intercept Depth: 315 m #### Classification - Deposit Type: iocg - Program: mixed - Sample Type: drill - Group ID: FURN-DD-00355:369-389 - Mining Method: mixed #### Location - Location: SE zone - Easting: 610494 - Northing: 9347052 - Elevation: 380 m - Azimuth: 200 ° - Dip: 60 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z - Positive factor: Good gold grade \(0.50 g/t\) over a strong width \(20m\) for an IOCG deposit. - Positive factor: Part of a high-grade sub-interval within a key infill hole. - Negative factor: True width not disclosed. #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-98) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.04 - Grade Unit: % - Intercept: 21 m - From: 574 m - To: 595 m - Intercept Depth: 574 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:574-595 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.62 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.04 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 21.8 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.04 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.04 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-99) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.77 - Grade Unit: g/t - Intercept: 21 m - From: 574 m - To: 595 m - Intercept Depth: 574 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:574-595 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.62 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.77 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 16.2 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.77 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-100) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.41 - Grade Unit: g/t - Intercept: 21 m - From: 574 m - To: 595 m - Intercept Depth: 574 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:574-595 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.62 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.41 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 50.6 g/t·m is below. - Negative factor: 2.41 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.41 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-101) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.85 - Grade Unit: % - Intercept: 14 m - From: 585 m - To: 599 m - Intercept Depth: 585 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:585-599 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.23 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.85 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 11.9 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.85 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.85 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-102) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.48 - Grade Unit: g/t - Intercept: 14 m - From: 585 m - To: 599 m - Intercept Depth: 585 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:585-599 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.23 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.48 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 6.7 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.48 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-103) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.65 - Grade Unit: g/t - Intercept: 14 m - From: 585 m - To: 599 m - Intercept Depth: 585 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:585-599 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.23 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 3.65 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 51.1 g/t·m is below. - Negative factor: 3.65 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 3.65 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-104) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.83 - Grade Unit: % - Intercept: 10 m - From: 314 m - To: 324 m - Intercept Depth: 314 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:314-324 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.23 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.83 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 8.3 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.83 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.83 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-105) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.52 - Grade Unit: g/t - Intercept: 10 m - From: 314 m - To: 324 m - Intercept Depth: 314 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:314-324 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.23 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.52 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 5.2 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.52 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-106) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.21 - Grade Unit: g/t - Intercept: 10 m - From: 314 m - To: 324 m - Intercept Depth: 314 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:314-324 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.23 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 3.21 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 32.1 g/t·m is below. - Negative factor: 3.21 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 3.21 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-107) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.18 - Grade Unit: % - Intercept: 24 m - From: 371 m - To: 395 m - Intercept Depth: 371 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:371-395 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.18 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 28.3 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.18 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.18 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-108) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: g/t - Intercept: 24 m - From: 371 m - To: 395 m - Intercept Depth: 371 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:371-395 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.64 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 15.4 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.64 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-109) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.99 - Grade Unit: g/t - Intercept: 24 m - From: 371 m - To: 395 m - Intercept Depth: 371 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:371-395 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.99 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 71.8 g/t·m is below. - Negative factor: 2.99 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.99 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-110) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.25 - Grade Unit: % - Intercept: 27 m - From: 601 m - To: 628 m - Intercept Depth: 601 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:601-628 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.86 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.25 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 33.8 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.25 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.25 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-111) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.77 - Grade Unit: g/t - Intercept: 27 m - From: 601 m - To: 628 m - Intercept Depth: 601 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:601-628 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.86 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.77 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 20.8 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.77 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-112) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 6.06 - Grade Unit: g/t - Intercept: 27 m - From: 601 m - To: 628 m - Intercept Depth: 601 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:601-628 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.86 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 6.06 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 163.6 g/t·m is below. - Negative factor: 6.06 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 6.06 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-113) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.82 - Grade Unit: % - Intercept: 5 m - From: 553 m - To: 558 m - Intercept Depth: 553 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:553-558 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.93 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.82 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 4.1 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.82 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.82 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-114) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.14 - Grade Unit: g/t - Intercept: 5 m - From: 553 m - To: 558 m - Intercept Depth: 553 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:553-558 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.93 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.14 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 0.7 g/t·m is below. - Negative factor: 0.14 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.14 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-115) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.87 - Grade Unit: g/t - Intercept: 5 m - From: 553 m - To: 558 m - Intercept Depth: 553 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:553-558 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.93 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.87 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 9.4 g/t·m is below. - Negative factor: 1.87 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.87 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-116) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: % - Intercept: 20 m - From: 743 m - To: 763 m - Intercept Depth: 743 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:743-763 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.64 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 12.8 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.64 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.64 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-117) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.48 - Grade Unit: g/t - Intercept: 20 m - From: 743 m - To: 763 m - Intercept Depth: 743 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:743-763 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.48 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 9.6 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.48 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-118) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.84 - Grade Unit: g/t - Intercept: 20 m - From: 743 m - To: 763 m - Intercept Depth: 743 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:743-763 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.84 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 36.8 g/t·m is below. - Negative factor: 1.84 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.84 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-119) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.71 - Grade Unit: % - Intercept: 41 m - From: 720 m - To: 761 m - Intercept Depth: 720 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:720-761 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.06 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.71 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 29.1 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.71 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.71 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-120) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.47 - Grade Unit: g/t - Intercept: 41 m - From: 720 m - To: 761 m - Intercept Depth: 720 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:720-761 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.06 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.47 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 19.3 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.47 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-121) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2 - Grade Unit: g/t - Intercept: 41 m - From: 720 m - To: 761 m - Intercept Depth: 720 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:720-761 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.06 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 82.0 g/t·m is below. - Negative factor: 2 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.00 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-122) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.43 - Grade Unit: % - Intercept: 14 m - From: 481 m - To: 495 m - Intercept Depth: 481 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:481-495 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.43 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 20.0 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.43 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.43 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-123) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 14 m - From: 481 m - To: 495 m - Intercept Depth: 481 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:481-495 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.3 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 4.2 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.30 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-124) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.69 - Grade Unit: g/t - Intercept: 14 m - From: 481 m - To: 495 m - Intercept Depth: 481 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:481-495 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.69 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 37.7 g/t·m is below. - Negative factor: 2.69 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.69 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-125) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.82 - Grade Unit: % - Intercept: 14 m - From: 511 m - To: 525 m - Intercept Depth: 511 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:511-525 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.06 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.82 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 11.5 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.82 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.82 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-126) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.32 - Grade Unit: g/t - Intercept: 14 m - From: 511 m - To: 525 m - Intercept Depth: 511 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:511-525 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.06 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.32 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 4.5 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.32 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-127) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.17 - Grade Unit: g/t - Intercept: 14 m - From: 511 m - To: 525 m - Intercept Depth: 511 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:511-525 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.06 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.17 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 16.4 g/t·m is below. - Negative factor: 1.17 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.17 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-128) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.78 - Grade Unit: % - Intercept: 20 m - From: 484 m - To: 504 m - Intercept Depth: 484 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:484-504 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.98 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.78 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 35.6 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.78 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.78 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-129) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.25 - Grade Unit: g/t - Intercept: 20 m - From: 484 m - To: 504 m - Intercept Depth: 484 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:484-504 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.98 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.25 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 5.0 g/t·m is below. - Negative factor: 0.25 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.25 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-130) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.12 - Grade Unit: g/t - Intercept: 20 m - From: 484 m - To: 504 m - Intercept Depth: 484 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:484-504 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.98 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 3.12 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 62.4 g/t·m is below. - Negative factor: 3.12 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 3.12 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-131) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.97 - Grade Unit: % - Intercept: 20 m - From: 369 m - To: 389 m - Intercept Depth: 369 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:369-389 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.35 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.97 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 19.4 %·m is below \(grade alone is exceptional; the better of the two is used\). - Positive factor: 0.97 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.97 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-132) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.5 - Grade Unit: g/t - Intercept: 20 m - From: 369 m - To: 389 m - Intercept Depth: 369 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:369-389 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.35 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.5 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 10.0 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.50 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-133) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.31 - Grade Unit: g/t - Intercept: 20 m - From: 369 m - To: 389 m - Intercept Depth: 369 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:369-389 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.35 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.31 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 26.2 g/t·m is below. - Negative factor: 1.31 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.31 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-134) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.17 - Grade Unit: % - Intercept: 32 m - From: 726 m - To: 758 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:726-758 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.7 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.17 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 37.4 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.17 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.17 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-135) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.68 - Grade Unit: g/t - Intercept: 32 m - From: 726 m - To: 758 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:726-758 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.7 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.68 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 21.8 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.68 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-136) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 5.4 - Grade Unit: g/t - Intercept: 32 m - From: 726 m - To: 758 m - Intercept Depth: 726 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:726-758 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.7 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 5.4 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 172.8 g/t·m is below. - Negative factor: 5.4 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 5.40 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00358 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-137) Furnas · copper #### Identity - Hole ID: FURN-DD-00358 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.49 - Grade Unit: % - Intercept: 21 m - From: 323 m - To: 344 m - Intercept Depth: 323 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00358:323-344 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.55 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.49 % copper is moderate against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 10.3 %·m is below \(grade alone is moderate; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.49 Context: FURN-DD-00358 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00358 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-138) Furnas · gold #### Identity - Hole ID: FURN-DD-00358 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.07 - Grade Unit: g/t - Intercept: 21 m - From: 323 m - To: 344 m - Intercept Depth: 323 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00358:323-344 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.55 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.07 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 1.5 g/t·m is below. - Negative factor: 0.07 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.07 Context: FURN-DD-00358 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00358 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-139) Furnas · silver #### Identity - Hole ID: FURN-DD-00358 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.27 - Grade Unit: g/t - Intercept: 21 m - From: 323 m - To: 344 m - Intercept Depth: 323 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00358:323-344 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.55 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.27 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 26.7 g/t·m is below. - Negative factor: 1.27 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.27 Context: FURN-DD-00358 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-140) Furnas · copper #### Identity - Hole ID: And - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.43 - Grade Unit: % - Intercept: 8 m - From: 367 m - To: 375 m - Intercept Depth: 367 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:367-375 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.5 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.43 % copper is moderate against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 3.4 %·m is below \(grade alone is moderate; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.43 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-141) Furnas · gold #### Identity - Hole ID: And - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.09 - Grade Unit: g/t - Intercept: 8 m - From: 367 m - To: 375 m - Intercept Depth: 367 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:367-375 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.5 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.09 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 0.7 g/t·m is below. - Negative factor: 0.09 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.09 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-142) Furnas · silver #### Identity - Hole ID: And - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.93 - Grade Unit: g/t - Intercept: 8 m - From: 367 m - To: 375 m - Intercept Depth: 367 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:367-375 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.5 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.93 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 7.4 g/t·m is below. - Negative factor: 0.93 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.93 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-143) Furnas · copper #### Identity - Hole ID: And - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.43 - Grade Unit: % - Intercept: 5 m - From: 392 m - To: 397 m - Intercept Depth: 392 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:392-397 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.52 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.43 % copper is moderate against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 2.1 %·m is below \(grade alone is moderate; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.43 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-144) Furnas · gold #### Identity - Hole ID: And - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.11 - Grade Unit: g/t - Intercept: 5 m - From: 392 m - To: 397 m - Intercept Depth: 392 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:392-397 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.52 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.11 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 0.6 g/t·m is below. - Negative factor: 0.11 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.11 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-145) Furnas · silver #### Identity - Hole ID: And - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.9 - Grade Unit: g/t - Intercept: 5 m - From: 392 m - To: 397 m - Intercept Depth: 392 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:392-397 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.52 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.9 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 9.5 g/t·m is below. - Negative factor: 1.9 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.90 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00360 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-146) Furnas · copper #### Identity - Hole ID: FURN-DD-00360 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.6 - Grade Unit: % - Intercept: 72 m - From: 409 m - To: 481 m - Intercept Depth: 409 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00360:409-481 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.79 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.6 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 43.2 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.6 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.60 Context: FURN-DD-00360 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00360 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-147) Furnas · gold #### Identity - Hole ID: FURN-DD-00360 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.24 - Grade Unit: g/t - Intercept: 72 m - From: 409 m - To: 481 m - Intercept Depth: 409 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00360:409-481 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.79 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.24 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 17.3 g/t·m is weak \(grade alone is below; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.24 Context: FURN-DD-00360 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00360 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-148) Furnas · silver #### Identity - Hole ID: FURN-DD-00360 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.33 - Grade Unit: g/t - Intercept: 72 m - From: 409 m - To: 481 m - Intercept Depth: 409 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00360:409-481 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.79 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.33 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 95.8 g/t·m is below. - Negative factor: 1.33 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.33 Context: FURN-DD-00360 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-149) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.85 - Grade Unit: % - Intercept: 13 m - From: 465 m - To: 478 m - Intercept Depth: 465 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:465-478 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.21 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.85 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 11.0 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.85 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.85 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-150) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.47 - Grade Unit: g/t - Intercept: 13 m - From: 465 m - To: 478 m - Intercept Depth: 465 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:465-478 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.21 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.47 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 6.1 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.47 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-151) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.21 - Grade Unit: g/t - Intercept: 13 m - From: 465 m - To: 478 m - Intercept Depth: 465 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:465-478 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.21 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.21 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 15.7 g/t·m is below. - Negative factor: 1.21 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.21 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00361 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-152) Furnas · copper #### Identity - Hole ID: FURN-DD-00361 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.57 - Grade Unit: % - Intercept: 35 m - From: 399 m - To: 434 m - Intercept Depth: 399 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00361:399-434 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.57 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 19.9 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.57 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.57 Context: FURN-DD-00361 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00361 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-153) Furnas · gold #### Identity - Hole ID: FURN-DD-00361 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.54 - Grade Unit: g/t - Intercept: 35 m - From: 399 m - To: 434 m - Intercept Depth: 399 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00361:399-434 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.54 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 18.9 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.54 Context: FURN-DD-00361 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00361 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-154) Furnas · silver #### Identity - Hole ID: FURN-DD-00361 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.02 - Grade Unit: g/t - Intercept: 35 m - From: 399 m - To: 434 m - Intercept Depth: 399 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00361:399-434 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.97 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.02 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 35.7 g/t·m is below. - Negative factor: 1.02 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.02 Context: FURN-DD-00361 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-155) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: % - Intercept: 27 m - From: 401 m - To: 428 m - Intercept Depth: 401 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:401-428 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.09 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.64 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 17.3 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.64 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.64 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-156) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.61 - Grade Unit: g/t - Intercept: 27 m - From: 401 m - To: 428 m - Intercept Depth: 401 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:401-428 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.09 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.61 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 16.5 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.61 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-157) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.13 - Grade Unit: g/t - Intercept: 27 m - From: 401 m - To: 428 m - Intercept Depth: 401 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:401-428 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.09 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.13 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 30.5 g/t·m is below. - Negative factor: 1.13 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.13 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00367 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-158) Furnas · copper #### Identity - Hole ID: FURN-DD-00367 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.58 - Grade Unit: % - Intercept: 86 m - From: 373 m - To: 459 m - Intercept Depth: 373 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00367:373-459 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.81 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.58 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 49.9 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.58 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.58 Context: FURN-DD-00367 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00367 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-159) Furnas · gold #### Identity - Hole ID: FURN-DD-00367 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 86 m - From: 373 m - To: 459 m - Intercept Depth: 373 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00367:373-459 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.81 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.3 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 25.8 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.30 Context: FURN-DD-00367 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00367 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-160) Furnas · silver #### Identity - Hole ID: FURN-DD-00367 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.19 - Grade Unit: g/t - Intercept: 86 m - From: 373 m - To: 459 m - Intercept Depth: 373 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00367:373-459 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.81 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.19 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 102.3 g/t·m is below. - Negative factor: 1.19 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.19 Context: FURN-DD-00367 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-161) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.29 - Grade Unit: % - Intercept: 10 m - From: 414 m - To: 424 m - Intercept Depth: 414 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:414-424 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.49 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.29 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 12.9 %·m is below \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.29 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.29 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-162) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.25 - Grade Unit: g/t - Intercept: 10 m - From: 414 m - To: 424 m - Intercept Depth: 414 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:414-424 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.49 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.25 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 2.5 g/t·m is below. - Negative factor: 0.25 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.25 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-163) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.24 - Grade Unit: g/t - Intercept: 10 m - From: 414 m - To: 424 m - Intercept Depth: 414 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:414-424 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.49 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.24 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 22.4 g/t·m is below. - Negative factor: 2.24 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.24 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-164) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.96 - Grade Unit: % - Intercept: 17 m - From: 442 m - To: 459 m - Intercept Depth: 442 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:442-459 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.36 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.96 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 16.3 %·m is below \(grade alone is exceptional; the better of the two is used\). - Positive factor: 0.96 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.96 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-165) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.52 - Grade Unit: g/t - Intercept: 17 m - From: 442 m - To: 459 m - Intercept Depth: 442 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:442-459 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.36 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.52 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 8.8 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.52 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-166) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.35 - Grade Unit: g/t - Intercept: 17 m - From: 442 m - To: 459 m - Intercept Depth: 442 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:442-459 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.36 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.35 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 40.0 g/t·m is below. - Negative factor: 2.35 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.35 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-167) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.87 - Grade Unit: % - Intercept: 16 m - From: 380 m - To: 396 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:380-396 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.53 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.87 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 13.9 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.87 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.87 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-168) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.89 - Grade Unit: g/t - Intercept: 16 m - From: 380 m - To: 396 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:380-396 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.53 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.89 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 14.2 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.89 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-169) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.52 - Grade Unit: g/t - Intercept: 16 m - From: 380 m - To: 396 m - Intercept Depth: 380 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:380-396 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.53 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.52 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 24.3 g/t·m is below. - Negative factor: 1.52 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.52 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00369 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-170) Furnas · copper #### Identity - Hole ID: FURN-DD-00369 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.44 - Grade Unit: % - Intercept: 26 m - From: 265 m - To: 291 m - Intercept Depth: 265 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00369:265-291 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.73 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.44 % copper is moderate against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 11.4 %·m is below \(grade alone is moderate; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.44 Context: FURN-DD-00369 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00369 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-171) Furnas · gold #### Identity - Hole ID: FURN-DD-00369 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.35 - Grade Unit: g/t - Intercept: 26 m - From: 265 m - To: 291 m - Intercept Depth: 265 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00369:265-291 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.73 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.35 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 9.1 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.35 Context: FURN-DD-00369 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00369 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-172) Furnas · silver #### Identity - Hole ID: FURN-DD-00369 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.79 - Grade Unit: g/t - Intercept: 26 m - From: 265 m - To: 291 m - Intercept Depth: 265 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00369:265-291 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.73 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 3.79 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 98.5 g/t·m is below. - Negative factor: 3.79 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 3.79 Context: FURN-DD-00369 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-173) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.51 - Grade Unit: % - Intercept: 14 m - From: 266 m - To: 280 m - Intercept Depth: 266 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:266-280 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.87 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.51 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 7.1 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.51 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.51 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-174) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.44 - Grade Unit: g/t - Intercept: 14 m - From: 266 m - To: 280 m - Intercept Depth: 266 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:266-280 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.87 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.44 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 6.2 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.44 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-175) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 6.4 - Grade Unit: g/t - Intercept: 14 m - From: 266 m - To: 280 m - Intercept Depth: 266 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:266-280 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.87 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 6.4 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 89.6 g/t·m is below. - Negative factor: 6.4 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 6.40 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00372 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-176) Furnas · copper #### Identity - Hole ID: FURN-DD-00372 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.74 - Grade Unit: % - Intercept: 62 m - From: 478 m - To: 540 m - Intercept Depth: 478 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00372:478-540 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.13 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.74 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 45.9 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.74 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.74 Context: FURN-DD-00372 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00372 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-177) Furnas · gold #### Identity - Hole ID: FURN-DD-00372 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.51 - Grade Unit: g/t - Intercept: 62 m - From: 478 m - To: 540 m - Intercept Depth: 478 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00372:478-540 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.13 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.51 g/t gold is moderate against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 31.6 g/t·m is moderate \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.51 Context: FURN-DD-00372 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00372 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-178) Furnas · silver #### Identity - Hole ID: FURN-DD-00372 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.52 - Grade Unit: g/t - Intercept: 62 m - From: 478 m - To: 540 m - Intercept Depth: 478 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00372:478-540 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.13 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.52 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 156.2 g/t·m is below. - Negative factor: 2.52 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.52 Context: FURN-DD-00372 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-179) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1 - Grade Unit: % - Intercept: 16 m - From: 482 m - To: 498 m - Intercept Depth: 482 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:482-498 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.49 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 16.0 %·m is below \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.00 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-180) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.62 - Grade Unit: g/t - Intercept: 16 m - From: 482 m - To: 498 m - Intercept Depth: 482 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:482-498 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.49 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.62 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 9.9 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.62 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-181) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.86 - Grade Unit: g/t - Intercept: 16 m - From: 482 m - To: 498 m - Intercept Depth: 482 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:482-498 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.49 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 3.86 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 61.8 g/t·m is below. - Negative factor: 3.86 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 3.86 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-182) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.82 - Grade Unit: % - Intercept: 22 m - From: 518 m - To: 540 m - Intercept Depth: 518 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:518-540 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.3 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.82 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 18.0 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.82 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.82 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-183) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: g/t - Intercept: 22 m - From: 518 m - To: 540 m - Intercept Depth: 518 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:518-540 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.3 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.64 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 14.1 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.64 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-184) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.91 - Grade Unit: g/t - Intercept: 22 m - From: 518 m - To: 540 m - Intercept Depth: 518 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:518-540 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.3 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.91 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 42.0 g/t·m is below. - Negative factor: 1.91 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.91 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00317 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-185) Furnas · copper #### Identity - Hole ID: FURN-DD-00317 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.29 - Grade Unit: % - Intercept: 20 m - From: 420 m - To: 440 m - Intercept Depth: 420 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00317:420-440 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.66 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.29 % copper is weak against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 5.8 %·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.29 Context: FURN-DD-00317 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00317 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-186) Furnas · gold #### Identity - Hole ID: FURN-DD-00317 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.5 - Grade Unit: g/t - Intercept: 20 m - From: 420 m - To: 440 m - Intercept Depth: 420 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00317:420-440 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.66 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.5 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 10.0 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.50 Context: FURN-DD-00317 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00317 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-187) Furnas · silver #### Identity - Hole ID: FURN-DD-00317 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.44 - Grade Unit: g/t - Intercept: 20 m - From: 420 m - To: 440 m - Intercept Depth: 420 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00317:420-440 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.66 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.44 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 8.8 g/t·m is below. - Negative factor: 0.44 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.44 Context: FURN-DD-00317 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-188) Furnas · copper #### Identity - Hole ID: And - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: % - Intercept: 66 m - From: 481 m - To: 547 m - Intercept Depth: 481 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:481-547 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.83 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.64 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 42.2 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.64 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.64 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-189) Furnas · gold #### Identity - Hole ID: And - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.26 - Grade Unit: g/t - Intercept: 66 m - From: 481 m - To: 547 m - Intercept Depth: 481 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:481-547 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.83 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.26 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 17.2 g/t·m is weak \(grade alone is below; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.26 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-190) Furnas · silver #### Identity - Hole ID: And - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.52 - Grade Unit: g/t - Intercept: 66 m - From: 481 m - To: 547 m - Intercept Depth: 481 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:481-547 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.83 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.52 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 100.3 g/t·m is below. - Negative factor: 1.52 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.52 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-191) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.99 - Grade Unit: % - Intercept: 22 m - From: 493 m - To: 515 m - Intercept Depth: 493 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:493-515 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.12 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.99 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 21.8 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 0.99 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.99 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-192) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.17 - Grade Unit: g/t - Intercept: 22 m - From: 493 m - To: 515 m - Intercept Depth: 493 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:493-515 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.12 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.17 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 3.7 g/t·m is below. - Negative factor: 0.17 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.17 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-193) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.18 - Grade Unit: g/t - Intercept: 22 m - From: 493 m - To: 515 m - Intercept Depth: 493 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:493-515 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.12 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.18 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 26.0 g/t·m is below. - Negative factor: 1.18 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.18 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00332 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-194) Furnas · copper #### Identity - Hole ID: FURN-DD-00332 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.43 - Grade Unit: % - Intercept: 81 m - From: 569 m - To: 650 m - Intercept Depth: 569 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00332:569-650 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.64 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.43 % copper is moderate against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 34.8 %·m is weak \(grade alone is moderate; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.43 Context: FURN-DD-00332 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00332 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-195) Furnas · gold #### Identity - Hole ID: FURN-DD-00332 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.29 - Grade Unit: g/t - Intercept: 81 m - From: 569 m - To: 650 m - Intercept Depth: 569 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00332:569-650 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.64 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.29 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 23.5 g/t·m is weak \(grade alone is below; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.29 Context: FURN-DD-00332 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00332 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-196) Furnas · silver #### Identity - Hole ID: FURN-DD-00332 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.9 - Grade Unit: g/t - Intercept: 81 m - From: 569 m - To: 650 m - Intercept Depth: 569 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00332:569-650 - Mining Method: mixed #### Location - Location: NORTHWEST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.64 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.9 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 72.9 g/t·m is below. - Negative factor: 0.9 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.90 Context: FURN-DD-00332 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-197) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.55 - Grade Unit: % - Intercept: 44 m - From: 593 m - To: 637 m - Intercept Depth: 593 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:593-637 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.8 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.55 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 24.2 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.55 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.55 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-198) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.32 - Grade Unit: g/t - Intercept: 44 m - From: 593 m - To: 637 m - Intercept Depth: 593 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:593-637 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.8 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.32 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 14.1 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.32 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-199) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.2 - Grade Unit: g/t - Intercept: 44 m - From: 593 m - To: 637 m - Intercept Depth: 593 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:593-637 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.8 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.2 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 52.8 g/t·m is below. - Negative factor: 1.2 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.20 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00335 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-200) Furnas · copper #### Identity - Hole ID: FURN-DD-00335 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.48 - Grade Unit: % - Intercept: 103 m - From: 94 m - To: 197 m - Intercept Depth: 94 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00335:94-197 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.59 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.48 % copper is moderate against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 49.4 %·m is weak \(grade alone is moderate; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.48 Context: FURN-DD-00335 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00335 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-201) Furnas · gold #### Identity - Hole ID: FURN-DD-00335 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.14 - Grade Unit: g/t - Intercept: 103 m - From: 94 m - To: 197 m - Intercept Depth: 94 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00335:94-197 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.59 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.14 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 14.4 g/t·m is weak \(grade alone is below; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.14 Context: FURN-DD-00335 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00335 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-202) Furnas · silver #### Identity - Hole ID: FURN-DD-00335 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.69 - Grade Unit: g/t - Intercept: 103 m - From: 94 m - To: 197 m - Intercept Depth: 94 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00335:94-197 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.59 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.69 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 71.1 g/t·m is below. - Negative factor: 0.69 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.69 Context: FURN-DD-00335 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-203) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.63 - Grade Unit: % - Intercept: 20 m - From: 113 m - To: 133 m - Intercept Depth: 113 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:113-133 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.81 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.63 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 12.6 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.63 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.63 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-204) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.24 - Grade Unit: g/t - Intercept: 20 m - From: 113 m - To: 133 m - Intercept Depth: 113 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:113-133 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.81 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.24 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 4.8 g/t·m is below. - Negative factor: 0.24 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.24 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-205) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.88 - Grade Unit: g/t - Intercept: 20 m - From: 113 m - To: 133 m - Intercept Depth: 113 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:113-133 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.81 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.88 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 17.6 g/t·m is below. - Negative factor: 0.88 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.88 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00336 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-206) Furnas · copper #### Identity - Hole ID: FURN-DD-00336 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.58 - Grade Unit: % - Intercept: 83 m - From: 462 m - To: 545 m - Intercept Depth: 462 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00336:462-545 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.87 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.58 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 48.1 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.58 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.58 Context: FURN-DD-00336 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00336 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-207) Furnas · gold #### Identity - Hole ID: FURN-DD-00336 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.38 - Grade Unit: g/t - Intercept: 83 m - From: 462 m - To: 545 m - Intercept Depth: 462 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00336:462-545 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.87 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.38 g/t gold is moderate against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 31.5 g/t·m is moderate \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.38 Context: FURN-DD-00336 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00336 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-208) Furnas · silver #### Identity - Hole ID: FURN-DD-00336 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.23 - Grade Unit: g/t - Intercept: 83 m - From: 462 m - To: 545 m - Intercept Depth: 462 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00336:462-545 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.87 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.23 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 102.1 g/t·m is below. - Negative factor: 1.23 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.23 Context: FURN-DD-00336 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-209) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.49 - Grade Unit: % - Intercept: 8 m - From: 465 m - To: 473 m - Intercept Depth: 465 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:465-473 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.82 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.49 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 11.9 %·m is below \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.49 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.49 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-210) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.43 - Grade Unit: g/t - Intercept: 8 m - From: 465 m - To: 473 m - Intercept Depth: 465 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:465-473 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.82 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.43 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 3.4 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.43 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-211) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.5 - Grade Unit: g/t - Intercept: 8 m - From: 465 m - To: 473 m - Intercept Depth: 465 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:465-473 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.82 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.5 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 20.0 g/t·m is below. - Negative factor: 2.5 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.50 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00341 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-212) Furnas · copper #### Identity - Hole ID: FURN-DD-00341 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.56 - Grade Unit: % - Intercept: 120 m - From: 400 m - To: 520 m - Intercept Depth: 400 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00341:400-520 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.76 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.56 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 67.2 %·m is moderate \(grade alone is strong; the better of the two is used\). - Positive factor: 0.56 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.56 Context: FURN-DD-00341 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00341 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-213) Furnas · gold #### Identity - Hole ID: FURN-DD-00341 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.25 - Grade Unit: g/t - Intercept: 120 m - From: 400 m - To: 520 m - Intercept Depth: 400 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00341:400-520 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.76 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.25 g/t gold is moderate against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 30.0 g/t·m is moderate \(grade alone is below; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.25 Context: FURN-DD-00341 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00341 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-214) Furnas · silver #### Identity - Hole ID: FURN-DD-00341 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.89 - Grade Unit: g/t - Intercept: 120 m - From: 400 m - To: 520 m - Intercept Depth: 400 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00341:400-520 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.76 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.89 g/t silver is weak against the default band \[500, 200, 100, 30\] g/t. Grade×width 226.8 g/t·m is weak \(grade alone is below; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.89 Context: FURN-DD-00341 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-215) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.8 - Grade Unit: % - Intercept: 24 m - From: 484 m - To: 508 m - Intercept Depth: 484 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:484-508 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.32 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.8 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 19.2 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.8 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.80 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-216) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.65 - Grade Unit: g/t - Intercept: 24 m - From: 484 m - To: 508 m - Intercept Depth: 484 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:484-508 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.32 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.65 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 15.6 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.65 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-217) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 3.54 - Grade Unit: g/t - Intercept: 24 m - From: 484 m - To: 508 m - Intercept Depth: 484 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:484-508 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.32 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 3.54 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 85.0 g/t·m is below. - Negative factor: 3.54 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 3.54 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00342 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-218) Furnas · copper #### Identity - Hole ID: FURN-DD-00342 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.63 - Grade Unit: % - Intercept: 117 m - From: 423 m - To: 540 m - Intercept Depth: 423 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00342:423-540 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.74 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.63 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 73.7 %·m is moderate \(grade alone is strong; the better of the two is used\). - Positive factor: 0.63 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.63 Context: FURN-DD-00342 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00342 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-219) Furnas · gold #### Identity - Hole ID: FURN-DD-00342 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.13 - Grade Unit: g/t - Intercept: 117 m - From: 423 m - To: 540 m - Intercept Depth: 423 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00342:423-540 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.74 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.13 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 15.2 g/t·m is weak \(grade alone is below; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.13 Context: FURN-DD-00342 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00342 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-220) Furnas · silver #### Identity - Hole ID: FURN-DD-00342 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.4 - Grade Unit: g/t - Intercept: 117 m - From: 423 m - To: 540 m - Intercept Depth: 423 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00342:423-540 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.74 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.4 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 163.8 g/t·m is below. - Negative factor: 1.4 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.40 Context: FURN-DD-00342 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-221) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.96 - Grade Unit: % - Intercept: 30 m - From: 431 m - To: 461 m - Intercept Depth: 431 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:431-461 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.96 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 28.8 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 0.96 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.96 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-222) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.11 - Grade Unit: g/t - Intercept: 30 m - From: 431 m - To: 461 m - Intercept Depth: 431 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:431-461 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.11 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 3.3 g/t·m is below. - Negative factor: 0.11 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.11 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-223) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.4 - Grade Unit: g/t - Intercept: 30 m - From: 431 m - To: 461 m - Intercept Depth: 431 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:431-461 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.4 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 42.0 g/t·m is below. - Negative factor: 1.4 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.40 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-224) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.95 - Grade Unit: % - Intercept: 19 m - From: 471 m - To: 490 m - Intercept Depth: 471 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:471-490 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.29 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.95 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 18.1 %·m is below \(grade alone is exceptional; the better of the two is used\). - Positive factor: 0.95 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.95 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-225) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.44 - Grade Unit: g/t - Intercept: 19 m - From: 471 m - To: 490 m - Intercept Depth: 471 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:471-490 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.29 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.44 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 8.4 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.44 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-226) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.24 - Grade Unit: g/t - Intercept: 19 m - From: 471 m - To: 490 m - Intercept Depth: 471 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:471-490 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.29 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.24 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 42.6 g/t·m is below. - Negative factor: 2.24 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.24 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00343 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-227) Furnas · copper #### Identity - Hole ID: FURN-DD-00343 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.52 - Grade Unit: % - Intercept: 77 m - From: 392 m - To: 469 m - Intercept Depth: 392 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00343:392-469 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.71 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.52 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 40.0 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.52 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.52 Context: FURN-DD-00343 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00343 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-228) Furnas · gold #### Identity - Hole ID: FURN-DD-00343 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.26 - Grade Unit: g/t - Intercept: 77 m - From: 392 m - To: 469 m - Intercept Depth: 392 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00343:392-469 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.71 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.26 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 20.0 g/t·m is weak \(grade alone is below; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.26 Context: FURN-DD-00343 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00343 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-229) Furnas · silver #### Identity - Hole ID: FURN-DD-00343 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.83 - Grade Unit: g/t - Intercept: 77 m - From: 392 m - To: 469 m - Intercept Depth: 392 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00343:392-469 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.71 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.83 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 63.9 g/t·m is below. - Negative factor: 0.83 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.83 Context: FURN-DD-00343 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-230) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.6 - Grade Unit: % - Intercept: 29 m - From: 400 m - To: 429 m - Intercept Depth: 400 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:400-429 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.83 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.6 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 17.4 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.6 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.60 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-231) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.31 - Grade Unit: g/t - Intercept: 29 m - From: 400 m - To: 429 m - Intercept Depth: 400 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:400-429 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.83 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.31 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 9.0 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.31 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-232) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.91 - Grade Unit: g/t - Intercept: 29 m - From: 400 m - To: 429 m - Intercept Depth: 400 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:400-429 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.83 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.91 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 26.4 g/t·m is below. - Negative factor: 0.91 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.91 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-233) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.6 - Grade Unit: % - Intercept: 14 m - From: 455 m - To: 469 m - Intercept Depth: 455 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:455-469 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.86 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.6 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 8.4 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.6 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.60 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-234) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.35 - Grade Unit: g/t - Intercept: 14 m - From: 455 m - To: 469 m - Intercept Depth: 455 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:455-469 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.86 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.35 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 4.9 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.35 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-235) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.04 - Grade Unit: g/t - Intercept: 14 m - From: 455 m - To: 469 m - Intercept Depth: 455 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:455-469 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.86 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.04 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 14.6 g/t·m is below. - Negative factor: 1.04 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.04 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-236) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.78 - Grade Unit: % - Intercept: 26 m - From: 458 m - To: 484 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:458-484 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.18 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.78 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 20.3 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.78 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.78 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-237) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.42 - Grade Unit: g/t - Intercept: 26 m - From: 458 m - To: 484 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:458-484 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.18 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.42 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 10.9 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.42 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-238) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.3 - Grade Unit: g/t - Intercept: 26 m - From: 458 m - To: 484 m - Intercept Depth: 458 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:458-484 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.18 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.3 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 33.8 g/t·m is below. - Negative factor: 1.3 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.30 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-239) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.67 - Grade Unit: % - Intercept: 12 m - From: 511 m - To: 523 m - Intercept Depth: 511 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:511-523 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.6 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.67 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 8.0 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.67 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.67 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-240) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.65 - Grade Unit: g/t - Intercept: 12 m - From: 511 m - To: 523 m - Intercept Depth: 511 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:511-523 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.6 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.65 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 7.8 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.65 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-241) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.12 - Grade Unit: g/t - Intercept: 12 m - From: 511 m - To: 523 m - Intercept Depth: 511 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:511-523 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.6 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.12 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 25.4 g/t·m is below. - Negative factor: 2.12 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.12 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-242) Furnas · copper #### Identity - Hole ID: And - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.97 - Grade Unit: % - Intercept: 15 m - From: 103 m - To: 118 m - Intercept Depth: 103 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:103-118 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 3.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.97 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 44.6 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 2.97 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.97 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-243) Furnas · gold #### Identity - Hole ID: And - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0 - Grade Unit: g/t - Intercept: 15 m - From: 103 m - To: 118 m - Intercept Depth: 103 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:103-118 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 3.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 0.0 g/t·m is below. - Negative factor: 0 g/t gold is below the weak threshold \(0.3 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.00 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-244) Furnas · silver #### Identity - Hole ID: And - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 11.81 - Grade Unit: g/t - Intercept: 15 m - From: 103 m - To: 118 m - Intercept Depth: 103 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And:103-118 - Mining Method: mixed #### Location - Location: Central Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 3.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 11.81 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 177.2 g/t·m is below. - Negative factor: 11.81 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 11.81 Context: And #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00350 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-245) Furnas · copper #### Identity - Hole ID: FURN-DD-00350 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: % - Intercept: 44 m - From: 452 m - To: 496 m - Intercept Depth: 452 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00350:452-496 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.64 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 28.2 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.64 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.64 Context: FURN-DD-00350 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00350 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-246) Furnas · gold #### Identity - Hole ID: FURN-DD-00350 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.48 - Grade Unit: g/t - Intercept: 44 m - From: 452 m - To: 496 m - Intercept Depth: 452 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00350:452-496 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.48 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 21.1 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.48 Context: FURN-DD-00350 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00350 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-247) Furnas · silver #### Identity - Hole ID: FURN-DD-00350 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.72 - Grade Unit: g/t - Intercept: 44 m - From: 452 m - To: 496 m - Intercept Depth: 452 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00350:452-496 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.72 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 75.7 g/t·m is below. - Negative factor: 1.72 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.72 Context: FURN-DD-00350 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-248) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.76 - Grade Unit: % - Intercept: 24 m - From: 462 m - To: 486 m - Intercept Depth: 462 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:462-486 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.25 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.76 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 18.2 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.76 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.76 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-249) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: g/t - Intercept: 24 m - From: 462 m - To: 486 m - Intercept Depth: 462 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:462-486 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.25 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.64 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 15.4 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.64 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-250) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.15 - Grade Unit: g/t - Intercept: 24 m - From: 462 m - To: 486 m - Intercept Depth: 462 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:462-486 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.25 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.15 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 51.6 g/t·m is below. - Negative factor: 2.15 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.15 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00352 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-251) Furnas · copper #### Identity - Hole ID: FURN-DD-00352 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.58 - Grade Unit: % - Intercept: 65 m - From: 234 m - To: 299 m - Intercept Depth: 234 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00352:234-299 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.04 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.58 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 37.7 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.58 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.58 Context: FURN-DD-00352 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00352 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-252) Furnas · gold #### Identity - Hole ID: FURN-DD-00352 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.62 - Grade Unit: g/t - Intercept: 65 m - From: 234 m - To: 299 m - Intercept Depth: 234 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00352:234-299 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.04 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.62 g/t gold is moderate against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 40.3 g/t·m is moderate \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.62 Context: FURN-DD-00352 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00352 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-253) Furnas · silver #### Identity - Hole ID: FURN-DD-00352 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.63 - Grade Unit: g/t - Intercept: 65 m - From: 234 m - To: 299 m - Intercept Depth: 234 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00352:234-299 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.04 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.63 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 41.0 g/t·m is below. - Negative factor: 0.63 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.63 Context: FURN-DD-00352 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-254) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.73 - Grade Unit: % - Intercept: 40 m - From: 234 m - To: 274 m - Intercept Depth: 234 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:234-274 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.14 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.73 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 29.2 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.73 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.73 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-255) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.55 - Grade Unit: g/t - Intercept: 40 m - From: 234 m - To: 274 m - Intercept Depth: 234 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:234-274 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.14 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.55 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 22.0 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.55 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-256) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.66 - Grade Unit: g/t - Intercept: 40 m - From: 234 m - To: 274 m - Intercept Depth: 234 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:234-274 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.14 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.66 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 26.4 g/t·m is below. - Negative factor: 0.66 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.66 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-257) Furnas · copper #### Identity - Hole ID: And Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.01 - Grade Unit: % - Intercept: 16 m - From: 258 m - To: 274 m - Intercept Depth: 258 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And Incl:258-274 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.55 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.01 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 16.2 %·m is below \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.01 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.01 Context: And Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-258) Furnas · gold #### Identity - Hole ID: And Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.73 - Grade Unit: g/t - Intercept: 16 m - From: 258 m - To: 274 m - Intercept Depth: 258 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And Incl:258-274 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.55 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.73 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 11.7 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.73 Context: And Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### And Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-259) Furnas · silver #### Identity - Hole ID: And Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.76 - Grade Unit: g/t - Intercept: 16 m - From: 258 m - To: 274 m - Intercept Depth: 258 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: And Incl:258-274 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.55 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.76 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 12.2 g/t·m is below. - Negative factor: 0.76 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.76 Context: And Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00353 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-260) Furnas · copper #### Identity - Hole ID: FURN-DD-00353 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.63 - Grade Unit: % - Intercept: 103 m - From: 359 m - To: 462 m - Intercept Depth: 359 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00353:359-462 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.91 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.63 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 64.9 %·m is moderate \(grade alone is strong; the better of the two is used\). - Positive factor: 0.63 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.63 Context: FURN-DD-00353 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00353 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-261) Furnas · gold #### Identity - Hole ID: FURN-DD-00353 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.37 - Grade Unit: g/t - Intercept: 103 m - From: 359 m - To: 462 m - Intercept Depth: 359 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00353:359-462 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.91 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.37 g/t gold is moderate against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 38.1 g/t·m is moderate \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.37 Context: FURN-DD-00353 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00353 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-262) Furnas · silver #### Identity - Hole ID: FURN-DD-00353 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.37 - Grade Unit: g/t - Intercept: 103 m - From: 359 m - To: 462 m - Intercept Depth: 359 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00353:359-462 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.91 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.37 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 141.1 g/t·m is below. - Negative factor: 1.37 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.37 Context: FURN-DD-00353 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-263) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.88 - Grade Unit: % - Intercept: 37 m - From: 425 m - To: 462 m - Intercept Depth: 425 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:425-462 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.3 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.88 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 32.6 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.88 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.88 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-264) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.55 - Grade Unit: g/t - Intercept: 37 m - From: 425 m - To: 462 m - Intercept Depth: 425 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:425-462 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.3 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.55 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 20.4 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.55 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-265) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 2.36 - Grade Unit: g/t - Intercept: 37 m - From: 425 m - To: 462 m - Intercept Depth: 425 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:425-462 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.3 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 2.36 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 87.3 g/t·m is below. - Negative factor: 2.36 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 2.36 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00356 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-266) Furnas · copper #### Identity - Hole ID: FURN-DD-00356 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.44 - Grade Unit: % - Intercept: 68 m - From: 506 m - To: 574 m - Intercept Depth: 506 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00356:506-574 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.44 % copper is moderate against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 29.9 %·m is weak \(grade alone is moderate; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.44 Context: FURN-DD-00356 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00356 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-267) Furnas · gold #### Identity - Hole ID: FURN-DD-00356 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 68 m - From: 506 m - To: 574 m - Intercept Depth: 506 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00356:506-574 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.3 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 20.4 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.30 Context: FURN-DD-00356 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00356 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-268) Furnas · silver #### Identity - Hole ID: FURN-DD-00356 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.24 - Grade Unit: g/t - Intercept: 68 m - From: 506 m - To: 574 m - Intercept Depth: 506 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00356:506-574 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.67 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.24 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 84.3 g/t·m is below. - Negative factor: 1.24 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.24 Context: FURN-DD-00356 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-269) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.75 - Grade Unit: % - Intercept: 19 m - From: 524 m - To: 543 m - Intercept Depth: 524 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:524-543 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.2 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.75 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 14.3 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.75 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.75 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-270) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.6 - Grade Unit: g/t - Intercept: 19 m - From: 524 m - To: 543 m - Intercept Depth: 524 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:524-543 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.2 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.6 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 11.4 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.60 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-271) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.53 - Grade Unit: g/t - Intercept: 19 m - From: 524 m - To: 543 m - Intercept Depth: 524 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:524-543 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.2 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.53 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 29.1 g/t·m is below. - Negative factor: 1.53 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.53 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00359 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-272) Furnas · copper #### Identity - Hole ID: FURN-DD-00359 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.54 - Grade Unit: % - Intercept: 82 m - From: 85 m - To: 167 m - Intercept Depth: 85 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00359:85-167 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.85 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.54 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 44.3 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.54 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.54 Context: FURN-DD-00359 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00359 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-273) Furnas · gold #### Identity - Hole ID: FURN-DD-00359 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.41 - Grade Unit: g/t - Intercept: 82 m - From: 85 m - To: 167 m - Intercept Depth: 85 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00359:85-167 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.85 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.41 g/t gold is moderate against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 33.6 g/t·m is moderate \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.41 Context: FURN-DD-00359 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00359 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-274) Furnas · silver #### Identity - Hole ID: FURN-DD-00359 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.43 - Grade Unit: g/t - Intercept: 82 m - From: 85 m - To: 167 m - Intercept Depth: 85 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00359:85-167 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.85 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.43 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 117.3 g/t·m is below. - Negative factor: 1.43 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.43 Context: FURN-DD-00359 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-275) Furnas · copper #### Identity - Hole ID: Incl - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.64 - Grade Unit: % - Intercept: 38 m - From: 129 m - To: 167 m - Intercept Depth: 129 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:129-167 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.64 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 24.3 %·m is weak \(grade alone is strong; the better of the two is used\). - Positive factor: 0.64 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.64 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-276) Furnas · gold #### Identity - Hole ID: Incl - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.54 - Grade Unit: g/t - Intercept: 38 m - From: 129 m - To: 167 m - Intercept Depth: 129 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:129-167 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.54 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 20.5 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.54 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### Incl [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-277) Furnas · silver #### Identity - Hole ID: Incl - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.72 - Grade Unit: g/t - Intercept: 38 m - From: 129 m - To: 167 m - Intercept Depth: 129 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: Incl:129-167 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.05 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.72 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 65.4 g/t·m is below. - Negative factor: 1.72 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.72 Context: Incl #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00365 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-278) Furnas · copper #### Identity - Hole ID: FURN-DD-00365 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.53 - Grade Unit: % - Intercept: 24 m - From: 237 m - To: 261 m - Intercept Depth: 237 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00365:237-261 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.8 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.53 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 12.7 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.53 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.53 Context: FURN-DD-00365 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00365 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-279) Furnas · gold #### Identity - Hole ID: FURN-DD-00365 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.36 - Grade Unit: g/t - Intercept: 24 m - From: 237 m - To: 261 m - Intercept Depth: 237 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00365:237-261 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.8 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.36 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 8.6 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.36 Context: FURN-DD-00365 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00365 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-280) Furnas · silver #### Identity - Hole ID: FURN-DD-00365 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.66 - Grade Unit: g/t - Intercept: 24 m - From: 237 m - To: 261 m - Intercept Depth: 237 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00365:237-261 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.8 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.66 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 15.8 g/t·m is below. - Negative factor: 0.66 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.66 Context: FURN-DD-00365 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00371 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-281) Furnas · copper #### Identity - Hole ID: FURN-DD-00371 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.69 - Grade Unit: % - Intercept: 27 m - From: 169 m - To: 196 m - Intercept Depth: 169 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00371:169-196 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.69 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 18.6 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.69 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.69 Context: FURN-DD-00371 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00371 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-282) Furnas · gold #### Identity - Hole ID: FURN-DD-00371 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.41 - Grade Unit: g/t - Intercept: 27 m - From: 169 m - To: 196 m - Intercept Depth: 169 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00371:169-196 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.41 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 11.1 g/t·m is weak. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.41 Context: FURN-DD-00371 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00371 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-283) Furnas · silver #### Identity - Hole ID: FURN-DD-00371 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.7 - Grade Unit: g/t - Intercept: 27 m - From: 169 m - To: 196 m - Intercept Depth: 169 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00371:169-196 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.7 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 18.9 g/t·m is below. - Negative factor: 0.7 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.70 Context: FURN-DD-00371 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00375 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-284) Furnas · copper #### Identity - Hole ID: FURN-DD-00375 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.51 - Grade Unit: % - Intercept: 16 m - From: 209 m - To: 225 m - Intercept Depth: 209 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00375:209-225 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.75 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.51 % copper is strong against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 8.2 %·m is below \(grade alone is strong; the better of the two is used\). - Positive factor: 0.51 % copper is strong on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.51 Context: FURN-DD-00375 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00375 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-285) Furnas · gold #### Identity - Hole ID: FURN-DD-00375 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.31 - Grade Unit: g/t - Intercept: 16 m - From: 209 m - To: 225 m - Intercept Depth: 209 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00375:209-225 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.75 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.31 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 5.0 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.31 Context: FURN-DD-00375 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00375 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-286) Furnas · silver #### Identity - Hole ID: FURN-DD-00375 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.77 - Grade Unit: g/t - Intercept: 16 m - From: 209 m - To: 225 m - Intercept Depth: 209 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00375:209-225 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 0.75 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.77 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 12.3 g/t·m is below. - Negative factor: 0.77 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.77 Context: FURN-DD-00375 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00384 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-287) Furnas · copper #### Identity - Hole ID: FURN-DD-00384 - Project: Furnas - Commodity: copper - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.67 - Grade Unit: % - Intercept: 14 m - From: 240 m - To: 254 m - Intercept Depth: 240 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00384:240-254 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.91 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.67 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 23.4 %·m is weak \(grade alone is exceptional; the better of the two is used\). - Positive factor: 1.67 % copper is exceptional on the iocg deposit band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.67 Context: FURN-DD-00384 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00384 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-288) Furnas · gold #### Identity - Hole ID: FURN-DD-00384 - Project: Furnas - Commodity: gold - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 0.31 - Grade Unit: g/t - Intercept: 14 m - From: 240 m - To: 254 m - Intercept Depth: 240 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00384:240-254 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.91 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 0.31 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 4.3 g/t·m is below \(grade alone is weak; the better of the two is used\). - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 0.31 Context: FURN-DD-00384 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ### FURN-DD-00384 [Link to this fact](https://atlas-extractions.minestarters.com/news/ero-confirms-high-grade-continuity-and-extends-known-mineralization-at-furnas-wi--dbb3b416-106c-45d6-8677-390a7da1cab5#fact-drill-facts-289) Furnas · silver #### Identity - Hole ID: FURN-DD-00384 - Project: Furnas - Commodity: silver - Region: brazil - Reported Region: brazil - Ticker: ERO #### Geometry - Grade: 1.61 - Grade Unit: g/t - Intercept: 14 m - From: 240 m - To: 254 m - Intercept Depth: 240 m #### Classification - Deposit Type: iocg - Sample Type: drill - Group ID: FURN-DD-00384:240-254 - Mining Method: mixed #### Location - Location: SOUTHEAST ZONE - Loc. Source: document #### QA/QC - Laboratory: ALS Peru S.A. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Metal Eq. Grade: 1.91 - Metal Eq. Unit: % Cu-Eq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-10T00:00:00.000Z Reasoning: Expanded from assay table. 1.61 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 22.5 g/t·m is below. - Negative factor: 1.61 g/t silver is below the weak threshold \(30 g/t\) on the default band. - Negative factor: Scored from rubric bands during table expansion, not from document context. Evidence · table > 1.61 Context: FURN-DD-00384 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "WORK PROGRAM HIGHLIGHTS Drilling continues to demonstrate high-grade continuity within the NW and SE zones and extend mi" ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.