Aftermath Silver Berenguela & Challacollo Project Updates
Original announcement by orestocks on
- Company
- Aftermath Silver Ltd.
- Ticker
- AAG
- Exchange
- Unavailable
- Region
- Northern Chile
- Primary commodity
- Silver
- Secondary commodities
- Gold, Copper, Manganese
- Document categories
- Resource update, Drill results
- Extracted
- 2026-08-25 11:17:38 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Aftermath Silver provided operational updates for its Berenguela (Peru) and Challacollo (Chile) projects. The Berenguela Pre-Feasibility Study remains on track for early 2027, while the Challacollo project continues with an extended diamond drilling program.
Reasoning: The company is advancing its Berenguela PFS and continuing exploration at Challacollo, though the resource data provided for Challacollo is a restatement of a 2020 estimate.
Positive factors
- PFS on schedule
- ongoing drilling at two projects
- resource update provided for Challacollo
Negative factors
- Challacollo resource is historical (2020)
Facts used in scoring: 19
Classification and evidence
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: Challacollo project contains a significant portion of Inferred resources.
Evidence · text
“Inferred | Open Pit | 2,360 | 117 | 0.15”
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: Challacollo project has Indicated resources reported.
Evidence · text
“Indicated | Open Pit | 5,597 | 170 | 0.27”
QP/CP Signedpositive
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: Michael Parker, a fellow of the AusIMM, has reviewed and approved the technical content.
Evidence · text
“Michael Parker, a fellow of the AusIMM... has reviewed the technical content of this news release and approves the information”
Extracted facts
Stored fact records: 19. Some facts used in scoring do not have a stored record.
Resource Estimates (19)
Fact 1copperGrade: 1.19Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- copper
- Ticker
- AAG
Resource Data
- Grade
- 1.19
- Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-06-09T00:00:00.000Z
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Historical copper intercept mentioned as context.
Positive factors
- strong copper grade
Fact 2silverGrade: 78Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- AAG
Resource Data
- Grade
- 78
- Grade Unit
- g/t
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-06-09T00:00:00.000Z
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Historical silver grade mentioned as context.
Fact 3manganeseGrade: 7.3Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- manganese
- Ticker
- AAG
Resource Data
- Grade
- 7.3
- Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-02-27T00:00:00.000Z
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Historical manganese grade mentioned as context.
Positive factors
- high manganese grade
indicatedsilverTonnes: 5597000Grade: 170Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- AAG
Resource Data
- Category
- indicated
- Tonnes
- 5597000
- Grade
- 170
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Indicated silver resource from 2020 estimate.
Negative factors
- historical estimate
indicatedgoldTonnes: 5597000Grade: 0.27Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AAG
Resource Data
- Category
- indicated
- Tonnes
- 5597000
- Grade
- 0.27
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Indicated gold resource from 2020 estimate.
Negative factors
- historical estimate
indicatedsilverTonnes: 1043000Grade: 134Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- AAG
Resource Data
- Category
- indicated
- Tonnes
- 1043000
- Grade
- 134
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Indicated silver resource from 2020 estimate.
Negative factors
- historical estimate
indicatedgoldTonnes: 1043000Grade: 0.29Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AAG
Resource Data
- Category
- indicated
- Tonnes
- 1043000
- Grade
- 0.29
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Indicated gold resource from 2020 estimate.
Negative factors
- historical estimate
inferredsilverTonnes: 2360000Grade: 117Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- AAG
Resource Data
- Category
- inferred
- Tonnes
- 2360000
- Grade
- 117
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Inferred silver resource from 2020 estimate.
Negative factors
- historical estimate
inferredgoldTonnes: 2360000Grade: 0.15Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AAG
Resource Data
- Category
- inferred
- Tonnes
- 2360000
- Grade
- 0.15
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Inferred gold resource from 2020 estimate.
Negative factors
- historical estimate
inferredsilverTonnes: 443000Grade: 157Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- AAG
Resource Data
- Category
- inferred
- Tonnes
- 443000
- Grade
- 157
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Inferred silver resource from 2020 estimate.
Negative factors
- historical estimate
inferredgoldTonnes: 443000Grade: 0.26Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- AAG
Resource Data
- Category
- inferred
- Tonnes
- 443000
- Grade
- 0.26
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Inferred gold resource from 2020 estimate.
Negative factors
- historical estimate
indicatedSummary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silverTonnes: 5597000Grade: 170Grade Unit: g/tContained Metal: 30639Contained Unit: kozView all detailsHide details
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
- 2026-08-25T00:00:00.000Z
Reasoning: Historical high-grade copper intercept mentioned as context. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- long copper intercept
Evidence · table
“170”
Context: 5,597
indicatedSummary of the Mineral Resource Estimate for the Challacollo Silver-Gold · goldTonnes: 5597000Grade: 0.27Grade Unit: g/tContained Metal: 49Contained Unit: kozView all detailsHide details
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
- 2026-08-25T00:00:00.000Z
Reasoning: Historical high-grade copper intercept mentioned as context. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- long copper intercept
Evidence · table
“0.27”
Context: 5,597
indicatedSummary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silverTonnes: 1043000Grade: 134Grade Unit: g/tContained Metal: 4510Contained Unit: kozView all detailsHide details
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
- 2026-08-25T00:00:00.000Z
Reasoning: Historical high-grade copper intercept mentioned as context. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- long copper intercept
Evidence · table
“134”
Context: 1,043
indicatedSummary of the Mineral Resource Estimate for the Challacollo Silver-Gold · goldTonnes: 1043000Grade: 0.29Grade Unit: g/tContained Metal: 10Contained Unit: kozView all detailsHide details
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
- 2026-08-25T00:00:00.000Z
Reasoning: Historical high-grade copper intercept mentioned as context. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- long copper intercept
Evidence · table
“0.29”
Context: 1,043
inferredSummary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silverTonnes: 2360000Grade: 117Grade Unit: g/tContained Metal: 8912Contained Unit: kozView all detailsHide details
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
- 2026-08-25T00:00:00.000Z
Reasoning: Historical high-grade copper intercept mentioned as context. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- long copper intercept
Evidence · table
“117”
Context: 2,360
inferredSummary of the Mineral Resource Estimate for the Challacollo Silver-Gold · goldTonnes: 2360000Grade: 0.15Grade Unit: g/tContained Metal: 11Contained Unit: kozView all detailsHide details
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
- 2026-08-25T00:00:00.000Z
Reasoning: Historical high-grade copper intercept mentioned as context. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- long copper intercept
Evidence · table
“0.15”
Context: 2,360
inferredSummary of the Mineral Resource Estimate for the Challacollo Silver-Gold · silverTonnes: 443000Grade: 157Grade Unit: g/tContained Metal: 2232Contained Unit: kozView all detailsHide details
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
- 2026-08-25T00:00:00.000Z
Reasoning: Historical high-grade copper intercept mentioned as context. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- long copper intercept
Evidence · table
“157”
Context: 443
inferredSummary of the Mineral Resource Estimate for the Challacollo Silver-Gold · goldTonnes: 443000Grade: 0.26Grade Unit: g/tContained Metal: 4Contained Unit: kozView all detailsHide details
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
- 2026-08-25T00:00:00.000Z
Reasoning: Historical high-grade copper intercept mentioned as context. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- long copper intercept
Evidence · table
“0.26”
Context: 443
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.