Stillwater Critical Minerals Files NI 43-101 Technical Report for the Updated Stillwater West Mineral Resource Estimate in Montana, USA
Original announcement by prospectors_exchange on
- Company
- Stillwater Critical Minerals Corp.
- Ticker
- PGE
- Exchange
- Unavailable
- Region
- Montana, USA
- Primary commodity
- Nickel
- Secondary commodities
- Copper, Cobalt, Platinum, Palladium, Gold, Rhodium, Chromium
- Document categories
- Resource update, Other
- Extracted
- 2026-10-19 13:49:25 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Stillwater Critical Minerals has filed an NI 43-101 Technical Report supporting its updated Stillwater West Mineral Resource Estimate. The update establishes the project's first Indicated Resource of 29.4 Mt at 0.38% NiTEq and expands the Inferred Resource to 805.1 Mt at 0.34% NiTEq.
Reasoning: The announcement confirms a significant resource upgrade (first Indicated) and substantial tonnage expansion, though the actual resource numbers were previously announced in August 2026, making this a technical report filing for those results.
Positive factors
- Establishment of first Indicated Mineral Resource
- Significant expansion of Inferred Mineral Resource
- Large scale rhodium and nickel-PGE/cobalt deposit positioning
- NI 43-101 Technical Report filed
Facts used in scoring: 3
Classification and evidence
Category Upgradepositive
Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.
Why it applies: The update established the project's first Indicated Mineral Resource.
Evidence · text
“established its first Indicated Mineral Resource”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The company filed an independent NI 43-101 Technical Report.
Evidence · text
“filed an independent technical report (the “Technical Report”) prepared in accordance with National Instrument 43-101”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Resource Estimates (3)
indicatedStillwater West · nickelTonnes: 29400000Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Stillwater West
- Commodity
- nickel
- Region
- usa_mt
- Reported Region
- Montana, USA
- Ticker
- PGE
Resource scope
- Estimate type
- resource
- Resource group id
- resource:0bc056fb03511e5d1fe6
Resource Data
- Category
- indicated
- Tonnes
- 29400000
- Cutoff Grade
- 0.2
- Cutoff Unit
- % NiTEq
Prior Estimate
- Resource Date
- 2026-08-27
Metal Equivalent
- Metal Eq. Grade
- 0.38
- Metal Eq. Unit
- % NiTEq
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2026-08-27T00:00:00.000Z
Dates
- Event date
- 2026-10-19T00:00:00.000Z
Reasoning: First Indicated category established for the project.
Positive factors
- First Indicated Resource established
Evidence · text
“First Indicated Mineral Resource: 29.4 million tonnes (“Mt”) grading 0.38% total nickel equivalent (“NiTEq”) at a 0.20% NiTEq cut-off grade.”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
inferredStillwater West · nickelTonnes: 805100000Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Stillwater West
- Commodity
- nickel
- Region
- usa_mt
- Reported Region
- Montana, USA
- Ticker
- PGE
Resource scope
- Estimate type
- resource
- Resource group id
- resource:28d9936b183e24848c5d
Resource Data
- Category
- inferred
- Tonnes
- 805100000
- Cutoff Grade
- 0.2
- Cutoff Unit
- % NiTEq
Prior Estimate
- Resource Date
- 2026-08-27
Metal Equivalent
- Metal Eq. Grade
- 0.34
- Metal Eq. Unit
- % NiTEq
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2026-08-27T00:00:00.000Z
Dates
- Event date
- 2026-10-19T00:00:00.000Z
Reasoning: Significant tonnage expansion in the Inferred category.
Positive factors
- More than doubled the project's Inferred Mineral Resource
Evidence · text
“Expanded Inferred Mineral Resource: 805.1 Mt grading 0.34% NiTEq at a 0.20% NiTEq cut-off grade.”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
inferredStillwater West · chromiumContained Metal: 6.6Contained Unit: billion poundsHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Stillwater West
- Commodity
- chromium
- Region
- usa_mt
- Reported Region
- Montana, USA
- Ticker
- PGE
Resource scope
- Estimate type
- resource
- Resource group id
- resource:991add98d0b05c77b2a6
Resource Data
- Category
- inferred
- Contained Metal
- 6.6
- Contained Unit
- billion pounds
Prior Estimate
- Resource Date
- 2026-08-27
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2026-08-27T00:00:00.000Z
Dates
- Event date
- 2026-10-19T00:00:00.000Z
Reasoning: Large chromium resource identified in the Inferred category.
Positive factors
- Significant additional chromium resource
Evidence · text
“An estimated 6.6 billion pounds of chromium in the Inferred category”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
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.