# Aftermath Silver Begins Drilling at Berenguela Eastern Copper Target and Challacollo Silver Project in Chile Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d Original source: https://money.tmx.com/en/quote/AAG/news/4826576258009996/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac Publisher: tmx Original announcement: 2026-07-22T08:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Aftermath Silver Ltd. - Ticker: AAG - Exchange: TSX - Region: Chile - Primary commodity: Silver - Secondary commodities: Gold, Copper, Manganese - Document categories: Resource update, Drill results - Extracted: 2026-09-19 06:43:26 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Aftermath Silver has commenced new drilling programs at the Berenguela copper target in Peru and the Challacollo silver-gold project in Chile. The company aims to expand the existing Challacollo silver resource and test high-grade copper mineralization at the eastern limits of the Berenguela resource. Reasoning: The company is actively advancing two projects with new drilling, supported by a substantial existing silver resource at Challacollo and high-grade historical copper at Berenguela. - Positive factor: Commencement of new drilling programs at two distinct projects - Positive factor: Existing substantial silver resource at Challacollo - Positive factor: High-grade historical copper intercepts at Berenguela Facts used in scoring: 21 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Drilling at Berenguela is targeting the eastern limits of the existing MRE to investigate high grade copper mineralization beyond the limits. Evidence · text > investigate the potential for high grade copper mineralization beyond the limits of the existing MRE **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The Challacollo resource estimate is explicitly stated to be prepared in accordance with NI 43-101 standards. Evidence · text > NI 43-101 technical report for the Challacollo Mineral Resource Estimate **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: Dinara Nussipakynova, P.Geo., is named as the Qualified Person for the Challacollo resource estimate. Evidence · text > The Qualified Person is Dinara Nussipakynova, P.Geo. **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The Challacollo resource includes a significant Inferred component. Evidence · text > Inferred ## Extracted facts Stored fact records: 21. Some facts used in scoring do not have a stored record. ## Drill Results (5) ### AFD139 [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-drill-facts-0) Berenguela · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: AFD139 - Project: Berenguela - Commodity: copper - Region: peru - Reported Region: peru - Ticker: AAG #### Geometry - Grade: 1.19 - Grade Unit: % - Intercept: 69 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Methods: standards #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2025-06-09T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Historical high-grade copper intercept reported from previous drilling. - Positive factor: High grade copper intercept Evidence · text > AFD139 which returned 69m @ 1.19% Cu #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### AFD139 [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-drill-facts-1) Berenguela · silver Historical result Needs review: historical\_restatement #### Identity - Hole ID: AFD139 - Project: Berenguela - Commodity: silver - Region: peru - Reported Region: peru - Ticker: AAG #### Geometry - Grade: 78 - Grade Unit: g/t - Intercept: 69 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Methods: standards #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2025-06-09T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Historical silver credits reported alongside copper. - Positive factor: Significant silver credits Evidence · text > 69m @ 1.19% Cu + 78g/t Ag #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### AFD100 [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-drill-facts-2) Berenguela · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: AFD100 - Project: Berenguela - Commodity: copper - Region: peru - Reported Region: peru - Ticker: AAG #### Geometry - Grade: 1.12 - Grade Unit: % - Intercept: 156 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Methods: standards #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2025-02-27T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Exceptional width and high grade for the project. - Positive factor: Longest copper intercept to date - Positive factor: Significant width Evidence · text > 156m grading 1.12% Cu #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### AFD100 [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-drill-facts-3) Berenguela · silver Historical result Needs review: historical\_restatement #### Identity - Hole ID: AFD100 - Project: Berenguela - Commodity: silver - Region: peru - Reported Region: peru - Ticker: AAG #### Geometry - Grade: 290 - Grade Unit: g/t - Intercept: 156 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Methods: standards #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2025-02-27T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Significant silver credits in a long intercept. - Positive factor: High grade silver credits Evidence · text > 290 g/t Ag #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### AFD100 [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-drill-facts-4) Berenguela · manganese Historical result Needs review: historical\_restatement #### Identity - Hole ID: AFD100 - Project: Berenguela - Commodity: manganese - Region: peru - Reported Region: peru - Ticker: AAG #### Geometry - Grade: 7.3 - Grade Unit: % - Intercept: 156 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Methods: standards #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2025-02-27T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Presence of manganese noted in historical intercept. Evidence · text > 7.3% Mn #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ## Resource Estimates (16) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-5) Challacollo · silver Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo - Commodity: silver - Region: chile - Reported Region: Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Effective date: 2020-11-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dinara Nussipakynova - Resource group id: resource:d936ff25e0f1699ac01a - Deposit or zone: Challacollo - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 6640000 - Grade: 165 - Grade Unit: g/t - Contained Metal: 35150 - Contained Unit: koz #### Prior Estimate - Resource Date: 2020-11-30 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Significant indicated resource, but the estimate is from 2020. - Positive factor: Substantial silver resource - Negative factor: Stale estimate Evidence · table > 165 Context: 6,640 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.6 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-6) Challacollo · gold Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo - Commodity: gold - Region: chile - Reported Region: Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Effective date: 2020-11-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dinara Nussipakynova - Resource group id: resource:d936ff25e0f1699ac01a - Deposit or zone: Challacollo - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 6640000 - Grade: 0.27 - Grade Unit: g/t - Contained Metal: 58 - Contained Unit: koz #### Prior Estimate - Resource Date: 2020-11-30 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Gold component of the indicated resource. Evidence · table > 0.27 Context: 6,640 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.6 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-7) Challacollo · silver Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo - Commodity: silver - Region: chile - Reported Region: Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Effective date: 2020-11-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dinara Nussipakynova - Resource group id: resource:e5b460e305e726757436 - Deposit or zone: Challacollo - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 2803000 - Grade: 124 - Grade Unit: g/t - Contained Metal: 11144 - Contained Unit: koz #### Prior Estimate - Resource Date: 2020-11-30 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Significant inferred silver resource. - Negative factor: Inferred category Evidence · table > 124 Context: 2,803 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.6 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-8) Challacollo · gold Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo - Commodity: gold - Region: chile - Reported Region: Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Effective date: 2020-11-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dinara Nussipakynova - Resource group id: resource:e5b460e305e726757436 - Deposit or zone: Challacollo - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 2803000 - Grade: 0.17 - Grade Unit: g/t - Contained Metal: 15 - Contained Unit: koz #### Prior Estimate - Resource Date: 2020-11-30 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Gold component of the inferred resource. Evidence · table > 0.17 Context: 2,803 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.6 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-9) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silver #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: silver - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:83d91d69cadcc821343d - Material type: Open Pit #### Resource Data - Category: indicated - Tonnes: 5597000 - Grade: 170 - Grade Unit: g/t - Contained Metal: 30639 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 170 Context: 5,597 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-10) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · gold #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: gold - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:83d91d69cadcc821343d - Material type: Open Pit #### Resource Data - Category: indicated - Tonnes: 5597000 - Grade: 0.27 - Grade Unit: g/t - Contained Metal: 49 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 0.27 Context: 5,597 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-11) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silver #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: silver - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:ec452ecb4f866d87935a - Material type: Underground #### Resource Data - Category: indicated - Tonnes: 1043000 - Grade: 134 - Grade Unit: g/t - Contained Metal: 4510 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 134 Context: 1,043 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-12) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · gold #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: gold - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:ec452ecb4f866d87935a - Material type: Underground #### Resource Data - Category: indicated - Tonnes: 1043000 - Grade: 0.29 - Grade Unit: g/t - Contained Metal: 10 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 0.29 Context: 1,043 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-13) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silver #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: silver - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:fdced93912f963691b56 #### Resource Data - Category: indicated - Tonnes: 6640000 - Grade: 165 - Grade Unit: g/t - Contained Metal: 35150 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 165 Context: 6,640 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-14) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · gold #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: gold - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:fdced93912f963691b56 #### Resource Data - Category: indicated - Tonnes: 6640000 - Grade: 0.27 - Grade Unit: g/t - Contained Metal: 58 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 0.27 Context: 6,640 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-15) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silver #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: silver - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:b641c8ef001b9f03095a - Material type: Open Pit #### Resource Data - Category: inferred - Tonnes: 2360000 - Grade: 117 - Grade Unit: g/t - Contained Metal: 8912 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 117 Context: 2,360 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-16) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · gold #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: gold - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:b641c8ef001b9f03095a - Material type: Open Pit #### Resource Data - Category: inferred - Tonnes: 2360000 - Grade: 0.15 - Grade Unit: g/t - Contained Metal: 11 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 0.15 Context: 2,360 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-17) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silver #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: silver - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:9c5002a894898177e95b - Material type: Underground #### Resource Data - Category: inferred - Tonnes: 443000 - Grade: 157 - Grade Unit: g/t - Contained Metal: 2232 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 157 Context: 443 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-18) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · gold #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: gold - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:9c5002a894898177e95b - Material type: Underground #### Resource Data - Category: inferred - Tonnes: 443000 - Grade: 0.26 - Grade Unit: g/t - Contained Metal: 4 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 0.26 Context: 443 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-19) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silver #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: silver - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:3637ee73ef14cd19f22e #### Resource Data - Category: inferred - Tonnes: 2803000 - Grade: 124 - Grade Unit: g/t - Contained Metal: 11144 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 124 Context: 2,803 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--bf245f73-6a3a-41f0-a687-fd8f57a4068d#fact-resource-facts-20) Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold · gold #### Identity - Project: Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold - Commodity: gold - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:3637ee73ef14cd19f22e #### Resource Data - Category: inferred - Tonnes: 2803000 - Grade: 0.17 - Grade Unit: g/t - Contained Metal: 15 - Contained Unit: koz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-22T00:00:00.000Z Reasoning: Expanded from multi-commodity resource table for completeness. - Negative factor: Fact expanded from resource table columns \(model omitted this commodity\). Evidence · table > 0.17 Context: 2,803 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ## 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.