# Aftermath Silver Begins Drilling at Berenguela Eastern Copper Target and Challacollo Silver Project in Chile

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87

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: Copper, Gold, Manganese

- Document categories: Drill results, Resource update

- Extracted: 2026-08-24 04:46:55 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 announcement also provides a summary of the existing Challacollo silver resource, which is based on a 2020 NI 43-101 technical report.

Reasoning: The company is initiating new drilling at two projects, though the primary resource mentioned is a historical estimate from 2020.

- Positive factor: commencement of new drilling programs

- Positive factor: substantial existing silver resource at Challacollo

- Positive factor: high-grade copper targets at Berenguela

- Negative factor: resource estimate is historical \(2020\)

Facts used in scoring: 19

## Classification and evidence

**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 TOTAL 2,803 124 0.17 11,144 15

**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 is reported in compliance with NI 43-101.

Evidence · text

> NI 43-101 technical report for the Challacollo Mineral Resource Estimate

## Extracted facts

Stored fact records: 19. Some facts used in scoring do not have a stored record.

## Drill Results (7)

### AFD100

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-drill-facts-0)

Berenguela · copper

Historical result

Needs review: historical\_restatement

#### Identity

- Hole ID: AFD100
- Project: Berenguela
- Commodity: copper
- Ticker: AAG

#### Geometry

- Grade: 1.12
- Grade Unit: %
- Intercept: 156 m

#### 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 width and grade reported in a previous release.

- Positive factor: longest copper intercept to date

Evidence · text

> AFD100 which assayed 156m grading 1.12% Cu

### AFD100

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-drill-facts-1)

Berenguela · silver

Historical result

Needs review: historical\_restatement

#### Identity

- Hole ID: AFD100
- Project: Berenguela
- Commodity: silver
- Ticker: AAG

#### Geometry

- Grade: 290
- Grade Unit: g/t
- Intercept: 156 m

#### 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 grade associated with the long copper intercept.

- Positive factor: high silver grade

Evidence · text

> 156m grading 1.12% Cu, 290 g/t Ag

### AFD100

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-drill-facts-2)

Berenguela · manganese

Historical result

Needs review: historical\_restatement

#### Identity

- Hole ID: AFD100
- Project: Berenguela
- Commodity: manganese
- Ticker: AAG

#### Geometry

- Grade: 7.3
- Grade Unit: %
- Intercept: 156 m

#### 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: Manganese reported as a byproduct in a previous release.

Evidence · text

> 156m grading 1.12% Cu, 290 g/t Ag and 7.3% Mn

### Fact 4

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-drill-facts-3)

Challacollo · silver

Historical result

Needs review: historical\_restatement

#### Identity

- Project: Challacollo
- Commodity: silver
- Region: chile
- Reported Region: Chile
- Ticker: AAG

#### Geometry

- Grade: 165
- Grade Unit: g/t

#### Review

- Needs Review: Yes
- Review Reason: historical\_restatement
- Interp. Status: scored
- Historical: Yes
- Historical Source Date: 2020-11-30T00:00:00.000Z

#### Dates

- Event date: 2026-07-22T00:00:00.000Z

Reasoning: Indicated silver resource at Challacollo.

- Positive factor: substantial silver resource

- Negative factor: historical estimate

Evidence · table

> 165

Context: 6,640

### Fact 5

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-drill-facts-4)

Challacollo · gold

Historical result

Needs review: historical\_restatement

#### Identity

- Project: Challacollo
- Commodity: gold
- Region: chile
- Reported Region: Chile
- Ticker: AAG

#### Geometry

- Grade: 0.27
- Grade Unit: g/t

#### Review

- Needs Review: Yes
- Review Reason: historical\_restatement
- Interp. Status: scored
- Historical: Yes
- Historical Source Date: 2020-11-30T00:00:00.000Z

#### Dates

- Event date: 2026-07-22T00:00:00.000Z

Reasoning: Indicated gold resource at Challacollo.

Evidence · table

> 0.27

Context: 6,640

### Fact 6

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-drill-facts-5)

Challacollo · silver

Historical result

Needs review: historical\_restatement

#### Identity

- Project: Challacollo
- Commodity: silver
- Region: chile
- Reported Region: Chile
- Ticker: AAG

#### Geometry

- Grade: 124
- Grade Unit: g/t

#### Review

- Needs Review: Yes
- Review Reason: historical\_restatement
- Interp. Status: scored
- Historical: Yes
- Historical Source Date: 2020-11-30T00:00:00.000Z

#### Dates

- Event date: 2026-07-22T00:00:00.000Z

Reasoning: Inferred silver resource at Challacollo.

- Negative factor: inferred category

Evidence · table

> 124

Context: 2,803

### Fact 7

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-drill-facts-6)

Challacollo · gold

Historical result

Needs review: historical\_restatement

#### Identity

- Project: Challacollo
- Commodity: gold
- Region: chile
- Reported Region: Chile
- Ticker: AAG

#### Geometry

- Grade: 0.17
- Grade Unit: g/t

#### Review

- Needs Review: Yes
- Review Reason: historical\_restatement
- Interp. Status: scored
- Historical: Yes
- Historical Source Date: 2020-11-30T00:00:00.000Z

#### Dates

- Event date: 2026-07-22T00:00:00.000Z

Reasoning: Inferred gold resource at Challacollo.

- Negative factor: inferred category

Evidence · table

> 0.17

Context: 2,803

## Resource Estimates (12)

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-resource-facts-7)

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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 170

Context: 5,597

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#fact-resource-facts-8)

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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 0.27

Context: 5,597

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 134

Context: 1,043

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 0.29

Context: 1,043

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 165

Context: 6,640

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 0.27

Context: 6,640

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 117

Context: 2,360

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 0.15

Context: 2,360

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 157

Context: 443

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 0.26

Context: 443

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 124

Context: 2,803

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/aftermath-silver-begins-drilling-at-berenguela-eastern-copper-target-and-challac--3a9be7f9-3486-4204-b781-03c4b6533f87#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 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: High-grade copper intercept reported in a previous release. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: strong copper grade

Evidence · table

> 0.17

Context: 2,803

## 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.