Apollo Silver Initiates Preliminary Economic Assessment for the Calico Project
Original announcement by tmx on
- Company
- Apollo Silver Corp.
- Ticker
- APGO
- Exchange
- TSX
- Region
- California
- Primary commodity
- Silver
- Secondary commodities
- Barite, Zinc
- Document categories
- Resource update, Other
- Extracted
- 2026-08-22 22:42:13 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Apollo Silver has engaged SLR Consulting to lead a Preliminary Economic Assessment (PEA) for the Calico Silver Project in California. The company also announced the completion of a high-resolution airborne geophysical survey and is advancing metallurgical and geotechnical programs to support future development.
Reasoning: The announcement marks a significant project advancement milestone by initiating a PEA and engaging professional consultants, while restating a substantial existing resource base.
Positive factors
- Initiation of PEA
- Large silver resource scale
- Presence of critical minerals (barite, zinc)
- High-resolution geophysical survey completed
Negative factors
- Resource is primarily Inferred
Facts used in scoring: 6
Classification and evidence
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: The company has engaged SLR to lead a Preliminary Economic Assessment (PEA).
Evidence · text
“engaged SLR Consulting (Canada) Ltd. (“SLR”) ... to lead a Preliminary Economic Assessment (“PEA”)”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The resource estimate is based on a NI 43-101 Technical Report.
Evidence · text
“The Technical Report was prepared in accordance with National Instrument 43-101 (“NI 43-101”) Standards”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: A significant portion of the silver and critical mineral resources are in the Inferred category.
Evidence · text
“58 million ounces of silver in the Inferred category”
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Resource Estimates (6)
indicatedsilverTonnes: 55000000Grade: 71Grade Unit: g/tContained Metal: 125000000Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- APGO
Resource Data
- Category
- indicated
- Tonnes
- 55000000
- Grade
- 71
- Grade Unit
- g/t
- Contained Metal
- 125000000
- Contained Unit
- oz
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-16T00:00:00.000Z
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Large indicated silver resource component.
Positive factors
- High grade
inferredsilverTonnes: 25000000Grade: 71Grade Unit: g/tContained Metal: 58000000Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- APGO
Resource Data
- Category
- inferred
- Tonnes
- 25000000
- Grade
- 71
- Grade Unit
- g/t
- Contained Metal
- 58000000
- Contained Unit
- oz
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-16T00:00:00.000Z
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Significant inferred silver resource.
Positive factors
- High grade
Negative factors
- Inferred category
indicatedbariteTonnes: 2700000Grade: 7.4Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- barite
- Ticker
- APGO
Resource Data
- Category
- indicated
- Tonnes
- 2700000
- Grade
- 7.4
- Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-16T00:00:00.000Z
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Indicated barite resource.
indicatedzincTonnes: 36000000Grade: 0.45Grade Unit: %Contained Metal: 354000000Contained Unit: lbHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- zinc
- Ticker
- APGO
Resource Data
- Category
- indicated
- Tonnes
- 36000000
- Grade
- 0.45
- Grade Unit
- %
- Contained Metal
- 354000000
- Contained Unit
- lb
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-16T00:00:00.000Z
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Indicated zinc resource.
inferredbariteTonnes: 650000Grade: 3.9Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- barite
- Ticker
- APGO
Resource Data
- Category
- inferred
- Tonnes
- 650000
- Grade
- 3.9
- Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-16T00:00:00.000Z
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Inferred barite resource.
inferredzincTonnes: 17000000Grade: 0.71Grade Unit: %Contained Metal: 258000000Contained Unit: lbHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- zinc
- Ticker
- APGO
Resource Data
- Category
- inferred
- Tonnes
- 17000000
- Grade
- 0.71
- Grade Unit
- %
- Contained Metal
- 258000000
- Contained Unit
- lb
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-16T00:00:00.000Z
Dates
- Event date
- 2026-03-18T00:00:00.000Z
Reasoning: Inferred zinc resource.
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.