Clean Air Metals Files PEA Technical Report for the Thunder Bay North Critical Minerals Project
Original announcement by tmx on
- Company
- Clean Air Metals Inc.
- Ticker
- AIR
- Exchange
- TSX
- Region
- Ontario, Canada
- Primary commodity
- Platinum
- Secondary commodities
- Palladium, Copper, Nickel
- Document categories
- Resource update, Other
- Extracted
- 2026-08-21 04:16:11 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Clean Air Metals has filed a Preliminary Economic Assessment (PEA) for the Thunder Bay North Project in Ontario, reporting a $219.4M pre-tax NPV and a 39% IRR. The report includes an updated resource estimate featuring 14.9Mt of indicated PGE-Cu-Ni mineralization.
Reasoning: The filing of a PEA with a robust 39% IRR and a significant 14.9Mt indicated resource is a major project milestone, though the core data was previously disclosed.
Positive factors
- Strong economic indicators (39% pre-tax IRR)
- Significant indicated resource tonnage
- Near-surface underground mining potential
Negative factors
- Results were previously disclosed in October 2025 release
- No reserves reported
Facts used in scoring: 8
Classification and evidence
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: The company announced an updated resource completed for the Thunder Bay North project.
Evidence · text
“announced that it has filed the Preliminary Economic Assessment (PEA) and updated resource”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The resource includes 2.49M tonnes of inferred resource.
Evidence · text
“2.49M tonnes of inferred resource”
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: Multiple independent Qualified Persons (P. Eng) are named in the report.
Evidence · text
“are considered independent "Qualified Persons" under National Instrument 43-101 Standards”
Extracted facts
Stored fact records: 8. Some facts used in scoring do not have a stored record.
Resource Estimates (8)
indicatedplatinumTonnes: 14900000Grade: 2.66Grade Unit: g/t 2PGEHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- platinum
- Ticker
- AIR
Resource Data
- Category
- indicated
- Tonnes
- 14900000
- Grade
- 2.66
- Grade Unit
- g/t 2PGE
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-09T00:00:00.000Z
Dates
- Event date
- 2025-11-24T00:00:00.000Z
Reasoning: Indicated resource component of the updated MRE.
Positive factors
- Significant indicated tonnage
Negative factors
- Previously disclosed
indicatedpalladiumTonnes: 14900000Grade: 2.66Grade Unit: g/t 2PGEHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- palladium
- Ticker
- AIR
Resource Data
- Category
- indicated
- Tonnes
- 14900000
- Grade
- 2.66
- Grade Unit
- g/t 2PGE
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-09T00:00:00.000Z
Dates
- Event date
- 2025-11-24T00:00:00.000Z
Reasoning: Indicated resource component of the updated MRE (part of 2PGE).
Positive factors
- Significant indicated tonnage
Negative factors
- Previously disclosed
indicatedcopperTonnes: 14900000Grade: 0.4Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- copper
- Ticker
- AIR
Resource Data
- Category
- indicated
- Tonnes
- 14900000
- Grade
- 0.4
- Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-09T00:00:00.000Z
Dates
- Event date
- 2025-11-24T00:00:00.000Z
Reasoning: Indicated resource component of the updated MRE.
Positive factors
- Solid copper value contributing to economics
Negative factors
- Previously disclosed
Evidence · table
“0.40”
Context: 14.9
indicatednickelTonnes: 14900000Grade: 0.24Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- nickel
- Ticker
- AIR
Resource Data
- Category
- indicated
- Tonnes
- 14900000
- Grade
- 0.24
- Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-09T00:00:00.000Z
Dates
- Event date
- 2025-11-24T00:00:00.000Z
Reasoning: Indicated resource component of the updated MRE.
Positive factors
- Solid nickel value contributing to economics
Negative factors
- Previously disclosed
Evidence · table
“0.24”
Context: 14.9
inferredplatinumTonnes: 2490000Grade: 1.62Grade Unit: g/t 2PGEHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- platinum
- Ticker
- AIR
Resource Data
- Category
- inferred
- Tonnes
- 2490000
- Grade
- 1.62
- Grade Unit
- g/t 2PGE
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-09T00:00:00.000Z
Dates
- Event date
- 2025-11-24T00:00:00.000Z
Reasoning: Inferred resource component of the updated MRE.
Positive factors
- Adds potential scale
Negative factors
- Inferred category (lower confidence)
- Previously disclosed
inferredpalladiumTonnes: 2490000Grade: 1.62Grade Unit: g/t 2PGEHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- palladium
- Ticker
- AIR
Resource Data
- Category
- inferred
- Tonnes
- 2490000
- Grade
- 1.62
- Grade Unit
- g/t 2PGE
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-09T00:00:00.000Z
Dates
- Event date
- 2025-11-24T00:00:00.000Z
Reasoning: Inferred resource component of the updated MRE (part of 2PGE).
Positive factors
- Adds potential scale
Negative factors
- Inferred category (lower confidence)
- Previously disclosed
inferredcopperTonnes: 2490000Grade: 0.31Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- copper
- Ticker
- AIR
Resource Data
- Category
- inferred
- Tonnes
- 2490000
- Grade
- 0.31
- Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-09T00:00:00.000Z
Dates
- Event date
- 2025-11-24T00:00:00.000Z
Reasoning: Inferred resource component of the updated MRE.
Positive factors
- Adds potential scale
Negative factors
- Inferred category (lower confidence)
- Previously disclosed
Evidence · table
“0.31”
Context: 2.49
inferrednickelTonnes: 2490000Grade: 0.19Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- nickel
- Ticker
- AIR
Resource Data
- Category
- inferred
- Tonnes
- 2490000
- Grade
- 0.19
- Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-10-09T00:00:00.000Z
Dates
- Event date
- 2025-11-24T00:00:00.000Z
Reasoning: Inferred resource component of the updated MRE.
Positive factors
- Adds potential scale
Negative factors
- Inferred category (lower confidence)
- Previously disclosed
Evidence · table
“0.19”
Context: 2.49
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.