Stillwater Critical Minerals Files NI 43-101 Technical Report for the Updated Stillwater West Mineral Resource Estimate in Montana, USA

Stillwater Critical Minerals Corp. (PGE) filed an independent NI 43-101 Technical Report on October 19, 2026, supporting the updated Mineral Resource Estimate (MRE) announced on August 27, 2026. The report establishes the company's first Indicated Mineral Resource of 29.4 million tonnes grading 0.38% NiTEq at a 0.20% cut-off grade.

The Inferred Mineral Resource was more than doubled to 805.1 million tonnes grading 0.34% NiTEq. The project is positioned as the largest known rhodium deposit in North America and contains approximately 4.8 billion pounds of nickel, copper, and cobalt, plus 7.4 million ounces of platinum, palladium, gold, and rhodium. An additional 6.6 billion pounds of chromium is estimated in the Inferred category. The filing confirms the technical foundation for future metallurgical, engineering, and economic studies.

Stillwater Critical Minerals Corp. (PGE) filed a procedural follow-up to its August 27, 2026, Mineral Resource Estimate (MRE) announcement. The market was already aware of the resource expansion and the establishment of the maiden Indicated category. The technical report validates the geological model and drilling data, adding credibility but no new quantitative surprises. The news is incremental and expected, serving to finalize the technical package for regulatory filing and future study planning.

Stillwater Critical Minerals Corp. (PGE) is an exploration-stage company focused on critical minerals in North America. Its flagship asset is the Stillwater West Project in Montana, USA, a 100%-owned, 61 km² claim block within the Stillwater Igneous Complex. The project is adjacent to Sibanye-Stillwater's producing PGE mines, providing access to existing infrastructure, power, rail, and skilled labor.

The company’s portfolio also includes the Kluane PGE-Ni-Cu project in Yukon, the Drayton-Black Lake gold project in Ontario (49% interest), the Duke Island Cu-Ni-PGE property in Alaska, and a back-in right on Yankee-Dundee in British Columbia. Stillwater Critical Minerals is targeting ten U.S.-designated critical minerals, with a strong focus on nickel, PGEs, and cobalt.