Stillwater Critical Minerals Reports Wide Polymetallic Expansion Drilling Including 40.8 Meters at 1.0 g/t Palladium, Platinum and Gold, within Nickel-Copper-Cobalt Sulphide Mineralization at Stillwater West, Montana, USA

About this update from Stillwater Critical Minerals Corp

VANCOUVER, BC / ACCESS Newswire / March 3, 2026 / Stillwater Critical Minerals Corp. (TSX.V:PGE)(OTCQB:PGEZF)(FSE:J0G) (the "Company", or "Stillwater") reports a second tranche of results from its 2025 resource expansion drill campaign at the Company's 100%-owned Stillwater West project in Montana, USA. This release presents results from the Chrome Mountain deposit area and the HGR deposit at Iron Mountain where drilling intersected sulphide-rich polymetallic nickel-copper-cobalt-platinum-palladium-gold ("Ni-Cu-Co-PGE-Au") mineralization that extends beyond the limits of the January 2023 Mineral Resource Estimate (the "2023 MRE"). Stillwater West is one of the few U.S. critical minerals projects with a significant nickel and platinum group element ("PGE") resource and is located immediately adjacent to Sibanye-Stillwater's Stillwater mines, the only primary PGE producer in the United States. Highlights "These results confirm the extension of sulphide-rich polymetallic mineralization beyond the current Chrome Mountain and HGR resource boundaries," said Michael Rowley, President and CEO. "The consistent platinum and palladium enrichment within the broader nickel-copper sulphide system continues to demonstrate the strength of the project's multi-metal profile as we advance toward an updated Mineral Resource Estimate in the first half of 2026. Assays for rhodium remain pending and will be reported as received." Dr. Danie Grobler, Vice-President Exploration, commented "Platinum is an order of magnitude scarcer than gold, while there are very few PGE bulk tonnage near-surface deposits remaining in the world. Chrome Mountain continues to deliver wide intervals of Platreef-style mineralization enriched in platinum and palladium associated with magmatic nickel-copper sulphide mineralized zones. The 2025 drilling at HGR intersected a similar style and thickness of mineralization. We are now working with Glencore and Expert Geophysics to refine 2026 drill targets with a focus on expansion of shallow resources in the Chrome and Iron Mountain areas. Within the 20 km detailed in the model of the main claim block, drilling has now defined mineralization along a total strike length of 3.3 km within the five resource areas, indicating significant opportunity for continued near-surface r...

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