# Aftermath Silver Berenguela & Challacollo Project Updates Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610 Original source: https://money.tmx.com/en/quote/AAG/news/5204563569389265/aftermath-silver-berenguela-challacollo-project-updates Publisher: tmx Original announcement: 2026-08-25T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Aftermath Silver Ltd. - Ticker: AAG - Exchange: TSX - Region: Northern Chile - Primary commodity: Silver - Secondary commodities: Gold - Document categories: Resource update, Economic study - Extracted: 2026-09-19 06:20:49 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Aftermath Silver provided updates for its Berenguela \(Peru\) and Challacollo \(Chile\) projects. The Berenguela Prefeasibility Study is progressing on schedule for early 2027, while the Challacollo project continues drilling to test vein extensions, supported by a restated silver-gold resource estimate. Reasoning: The document provides a summary of the Challacollo resource \(restatement\) and an update on the Berenguela PFS progress. - Positive factor: Challacollo resource update provides clear silver-gold breakdown - Positive factor: Berenguela PFS remains on schedule and budget - Positive factor: Ongoing drilling at Challacollo to test extensions - Negative factor: Challacollo resource is a restatement of a 2020 estimate - Negative factor: QP for Challacollo is noted as non-independent Facts used in scoring: 20 ## Classification and evidence **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document provides a summary of the Mineral Resource Estimate for the Challacollo project. Evidence · text > Summary of the Mineral Resource Estimate for the Challacollo Silver-Gold Project **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: The Challacollo MRE is based on a technical report from December 15, 2020. Evidence · text > announced on December 15, 2020 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: While a QP is named, the document explicitly states he is a non-independent director. Evidence · text > Michael Parker... is a non-independent qualified person **PFS Complete** Polarity: positive Definition: AACE Class 3 study complete. Why it applies: The Berenguela project is currently undergoing a Prefeasibility Study \(PFS\) on schedule. Evidence · text > our Prefeasability Report for the Berenguela project is on schedule and on budget ## Extracted facts Stored fact records: 20. Some facts used in scoring do not have a stored record. ## Resource Estimates (20) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-0) Challacollo Silver-Gold Project · silver Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo Silver-Gold Project - Commodity: silver - Region: chile - Reported Region: Northern Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:1c3730302a4ee9408437 - Deposit or zone: Challacollo - Mining method: open\_pit - 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: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Indicated silver resource for Challacollo \(restatement\). 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 **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 5.7 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-1) Challacollo Silver-Gold Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo Silver-Gold Project - Commodity: gold - Region: chile - Reported Region: Northern Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:1c3730302a4ee9408437 - Deposit or zone: Challacollo - Mining method: open\_pit - 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: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Indicated gold resource for Challacollo \(restatement\). 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 **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 5.7 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-2) Challacollo Silver-Gold Project · silver Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo Silver-Gold Project - Commodity: silver - Region: chile - Reported Region: Northern Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:aabb0e6192b942658573 - Deposit or zone: Challacollo - Mining method: underground - Material type: Underground #### Resource Data - Category: indicated - Tonnes: 1043000 - Grade: 134 - Grade Unit: g/t - Contained Metal: 4510 - Contained Unit: koz #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Indicated silver resource for Challacollo \(restatement\). 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 **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 5.7 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-3) Challacollo Silver-Gold Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo Silver-Gold Project - Commodity: gold - Region: chile - Reported Region: Northern Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:aabb0e6192b942658573 - Deposit or zone: Challacollo - Mining method: underground - 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: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Indicated gold resource for Challacollo \(restatement\). 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 **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 5.7 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-4) Challacollo Silver-Gold Project · silver Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo Silver-Gold Project - Commodity: silver - Region: chile - Reported Region: Northern Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:6d47f124d05c44aff113 - Deposit or zone: Challacollo - Mining method: open\_pit - 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: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Inferred silver resource for Challacollo \(restatement\). 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 **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 5.7 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-5) Challacollo Silver-Gold Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo Silver-Gold Project - Commodity: gold - Region: chile - Reported Region: Northern Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:6d47f124d05c44aff113 - Deposit or zone: Challacollo - Mining method: open\_pit - 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: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Inferred gold resource for Challacollo \(restatement\). 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 **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 5.7 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-6) Challacollo Silver-Gold Project · silver Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo Silver-Gold Project - Commodity: silver - Region: chile - Reported Region: Northern Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:38c8e6c80c9440c78a0a - Deposit or zone: Challacollo - Mining method: underground - Material type: Underground #### Resource Data - Category: inferred - Tonnes: 443000 - Grade: 157 - Grade Unit: g/t - Contained Metal: 2232 - Contained Unit: koz #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Inferred silver resource for Challacollo \(restatement\). 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 **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 5.7 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-7) Challacollo Silver-Gold Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Challacollo Silver-Gold Project - Commodity: gold - Region: chile - Reported Region: Northern Chile - Ticker: AAG #### Resource scope - Estimate type: resource - Resource group id: resource:38c8e6c80c9440c78a0a - Deposit or zone: Challacollo - Mining method: underground - 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: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2020-12-15T00:00:00.000Z #### Dates - Event date: 2026-08-25T00:00:00.000Z Reasoning: Inferred gold resource for Challacollo \(restatement\). 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 **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 5.7 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-8) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:3b41cf732f62f9767f16 - Mining method: combined - 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: 2026-08-25T00:00:00.000Z 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 **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-9) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:3b41cf732f62f9767f16 - Mining method: combined - 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: 2026-08-25T00:00:00.000Z 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 **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-10) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:641e6738e7e3c3e5793f - Mining method: combined - 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: 2026-08-25T00:00:00.000Z 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 **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-11) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:641e6738e7e3c3e5793f - Mining method: combined - 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: 2026-08-25T00:00:00.000Z 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 **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-12) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:6ac9c06e565904827d88 - Mining method: combined #### 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: 2026-08-25T00:00:00.000Z 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 **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-13) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:6ac9c06e565904827d88 - Mining method: combined #### 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: 2026-08-25T00:00:00.000Z 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 **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 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-14) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:65f73468a8edc9695bd4 - Mining method: combined - 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: 2026-08-25T00:00:00.000Z 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 **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 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-15) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:65f73468a8edc9695bd4 - Mining method: combined - 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: 2026-08-25T00:00:00.000Z 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 **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 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-16) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:ff3a55e3792b8d5258bd - Mining method: combined - 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: 2026-08-25T00:00:00.000Z 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 **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 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-17) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:ff3a55e3792b8d5258bd - Mining method: combined - 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: 2026-08-25T00:00:00.000Z 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 **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 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-18) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:4dd9ee51bcfad613667a - Mining method: combined #### 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: 2026-08-25T00:00:00.000Z 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 **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 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aftermath-silver-berenguela-challacollo-project-updates--e6bb669f-ac75-493a-968e-7c8b7c2fd610#fact-resource-facts-19) 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 - Reporting standards: ni\_43\_101 - Resource group id: resource:4dd9ee51bcfad613667a - Mining method: combined #### 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: 2026-08-25T00:00:00.000Z 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 **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 ## 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.