Stillwater Critical Minerals Mobilizes Drill Rigs to Stillwater West Critical Minerals Project in Montana, USA

VANCOUVER, BC / ACCESS Newswire / June 18, 2025 / Stillwater Critical Minerals Corp. (TSX.V:PGE)(OTCQB:PGEZF)(FSE:J0G), (the "Company" or "Stillwater") is pleased to announce that Energold Drilling has been retained to commence work at its flagship Stillwater West Ni-PGE-Cu-Co + Au project in Montana, USA, and is currently mobilizing rigs to site. The 2025 program will focus on the expansion of drill-defined mid to high-grade polymetallic sulphide mineralization in the most advanced project areas while also testing adjacent priority targets identified in the updated geologic model announced by the Company on March 26, 2025.

The upcoming drill campaign follows the successful completion of the property-wide MobileMT magneto-telluric geophysical survey in 2024, which identified multiple multi-kilometer-scale conductive highs and resistivity lows coincident with known mineralization and mineralized horizons. Results have provided a transformative view of the mineralized system across the lower Stillwater Igneous Complex and doubled the extent of Stillwater's 3D geological model from 9.5 kilometers to over 20 kilometers.

The 2025 drill program is being advanced in collaboration with Glencore plc through the Stillwater West Technical Committee, alongside technical partners ALS GoldSpot leveraging artificial intelligence and machine learning to refine targeting across the property.

"The 2024 geophysical survey has transformed our understanding of the Stillwater West project," commented Dr. Danie Grobler, Vice-President Exploration. "The identification of multiple large-scale conductive targets in and around known mineralization provides us with a robust pipeline of high-quality drill targets for expansion of our current resources. The 2025 campaign represents a significant step forward as we continue to unlock the full potential of what we believe is one of America's most important critical mineral districts."

Michael Rowley, Stillwater President and CEO, added "We are excited to ramp up to our 2025 field season as we look to apply our updated geologic model to the expansion of critical minerals supply from an iconic American mining district. The Company is well positioned to bring the robust economics of the large, polymetallic sulphide mines of the Platreef district in South Africa's Bushveld Igneous Complex to the parallel geological setting of the Stillwater Igneous Complex in the United States. We look forward to providing updates on our 2025 campaign and government initiatives in the near term, in addition to updates from our non-core assets."