Stillwater Critical Minerals More Than Doubles Stillwater West Inferred Mineral Resource and Establishes Maiden Indicated Resource

Original announcement by accesswire 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
Extracted
2026-08-27 11:49:30 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Stillwater Critical Minerals has released an updated 2026 Mineral Resource estimate for the Stillwater West project, establishing a maiden Indicated resource of 29.4 Mt at 0.38% NiTEq. The update also significantly expands the Inferred resource to 805.1 Mt at 0.34% NiTEq, containing substantial amounts of nickel, copper, cobalt, and platinum group metals.

Reasoning: The update establishes a maiden Indicated resource and significantly expands the Inferred resource, representing a major step in project de-risking and scale.

Positive factors

  • Establishment of maiden Indicated resource
  • Substantial tonnage growth in Inferred category
  • Significant contained metal increase
  • Large-scale polymetallic system
  • Strategic location adjacent to operating mines

Facts used in scoring: 14

Atlas analysis — Stillwater Critical Minerals Corp.: Stillwater Critical Minerals More Than Doubles Stillwater West Inferred Mineral Resource and Establishes Maiden Indicated Resource. indicated 29400000 tonnes; inferred 805100000 tonnes

Classification and evidence

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: The company has established its first Indicated Mineral Resource of 29.4 Mt.

Evidence · text

“establishes our first Indicated Mineral Resource”

Category Upgradepositive

Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.

Why it applies: The update includes the first definition of an Indicated Mineral Resource.

Evidence · text

“First definition of an Indicated Mineral Resource”

Tonnage Growthpositive

Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.

Why it applies: The Inferred resource has been significantly expanded.

Evidence · text

“More Than Doubles Stillwater West Inferred Mineral 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: Timothy O. Kuhl and Dr. Ted Eggleston are named as independent Qualified Persons.

Evidence · text

“The Qualified Person for the estimate is Mr. Timothy O. Kuhl, RM SME”

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: The estimate was prepared in accordance with NI 43-101 standards.

Evidence · text

“in accordance with National Instrument 43-101”

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: The NiTEq base case cut-off grade of 0.20% is clearly stated.

Evidence · text

“using a 0.20% NiTEq cut-off grade”

Extracted facts

Stored fact records: 14. Some facts used in scoring do not have a stored record.

Resource Estimates (14)

indicatednickelTonnes: 29400000Grade: 0.38Grade Unit: % NiTEqView all details
Link to this fact

Identity

Commodity
nickel
Ticker
PGE

Resource Data

Category
indicated
Tonnes
29400000
Grade
0.38
Grade Unit
% NiTEq

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: First definition of Indicated resource for the project.

Positive factors

  • Maiden Indicated resource

Evidence · text

“29.4 million tonnes of Indicated Mineral Resources grading 0.38% NiTEq”
indicatedcopperTonnes: 29400000View all details
Link to this fact

Identity

Commodity
copper
Ticker
PGE

Resource Data

Category
indicated
Tonnes
29400000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“containing 190 million pounds ("Mlbs") of nickel, copper and cobalt”
indicatedcobaltTonnes: 29400000View all details
Link to this fact

Identity

Commodity
cobalt
Ticker
PGE

Resource Data

Category
indicated
Tonnes
29400000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“containing 190 million pounds ("Mlbs") of nickel, copper and cobalt”
indicatedplatinumTonnes: 29400000View all details
Link to this fact

Identity

Commodity
platinum
Ticker
PGE

Resource Data

Category
indicated
Tonnes
29400000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“and 0.359 Moz of platinum, palladium, gold and rhodium”
indicatedpalladiumTonnes: 29400000View all details
Link to this fact

Identity

Commodity
palladium
Ticker
PGE

Resource Data

Category
indicated
Tonnes
29400000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“and 0.359 Moz of platinum, palladium, gold and rhodium”
indicatedgoldTonnes: 29400000View all details
Link to this fact

Identity

Commodity
gold
Ticker
PGE

Resource Data

Category
indicated
Tonnes
29400000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“and 0.359 Moz of platinum, palladium, gold and rhodium”
indicatedrhodiumTonnes: 29400000View all details
Link to this fact

Identity

Commodity
rhodium
Ticker
PGE

Resource Data

Category
indicated
Tonnes
29400000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“and 0.359 Moz of platinum, palladium, gold and rhodium”
inferrednickelTonnes: 805100000Grade: 0.34Grade Unit: % NiTEqView all details
Link to this fact

Identity

Commodity
nickel
Ticker
PGE

Resource Data

Category
inferred
Tonnes
805100000
Grade
0.34
Grade Unit
% NiTEq

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Significant increase in tonnage and scale of the Inferred resource.

Positive factors

  • Substantial expansion of Inferred resource

Evidence · text

“805.1 million tonnes of Inferred Mineral Resources grading 0.34% total nickel equivalent ("NiTEq")”
inferredcopperTonnes: 805100000View all details
Link to this fact

Identity

Commodity
copper
Ticker
PGE

Resource Data

Category
inferred
Tonnes
805100000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“containing 4.8 billion pounds ("Blbs") of nickel, copper and cobalt”
inferredcobaltTonnes: 805100000View all details
Link to this fact

Identity

Commodity
cobalt
Ticker
PGE

Resource Data

Category
inferred
Tonnes
805100000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“containing 4.8 billion pounds ("Blbs") of nickel, copper and cobalt”
inferredplatinumTonnes: 805100000View all details
Link to this fact

Identity

Commodity
platinum
Ticker
PGE

Resource Data

Category
inferred
Tonnes
805100000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“and 7.4 million ounces ("Moz") of platinum, palladium, gold and rhodium”
inferredpalladiumTonnes: 805100000View all details
Link to this fact

Identity

Commodity
palladium
Ticker
PGE

Resource Data

Category
inferred
Tonnes
805100000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“and 7.4 million ounces ("Moz") of platinum, palladium, gold and rhodium”
inferredgoldTonnes: 805100000View all details
Link to this fact

Identity

Commodity
gold
Ticker
PGE

Resource Data

Category
inferred
Tonnes
805100000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“and 7.4 million ounces ("Moz") of platinum, palladium, gold and rhodium”
inferredrhodiumTonnes: 805100000View all details
Link to this fact

Identity

Commodity
rhodium
Ticker
PGE

Resource Data

Category
inferred
Tonnes
805100000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-27T00:00:00.000Z

Reasoning: Contained metal reported as part of the NiTEq package.

Evidence · text

“and 7.4 million ounces ("Moz") of platinum, palladium, gold and rhodium”

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.