20th October 2025 United States Antimony Corporation has begun the Stibnite Hill operation
United States Antimony Corporation has announced that, after receiving necessary permits from the Department of Environmental Quality (DEQ) this month, it has officially begun exploration and bulk sampling operations on Stibnite Hill, located adjacent to the expanding smelter facility in Thompson Falls, Montana.
The United States Antimony Corporation team has already trucked multiple loads of high-quality antimony ore to a flotation mill in Montana for crushing and sampling. Early results are very encouraging.
Huge milestone
Joe Bardswich, Executive Vice President and Chief Mining Engineer has stated: “Earlier this year, we began the process of acquiring mineral leases and actual real property purchases in and around the Stibnite Hill mine previously operated and mined by the Company over twenty years ago. Once the necessary permits were obtained from the DEQ this month, we began our exploration efforts. Those have resulted in our first four loads of raw antimony ore for our existing operations to begin processing this year. While we fully expected our first actual product from the Company to come from our Alaska operations, the delay in permit approvals in that state for approximately five months, allowed Montana to be first. This achievement now makes United States Antimony Corporation the first company in the world to be fully integrated from mining operations to finished products of antimony.”
Strategic step
While Alaska operations were originally expected to come online first, permit delays there have allowed Montana to lead the way. This milestone represents not just a major operational achievement of the Company, but also a strategic step forward in securing the domestic supply of critical minerals vital to energy, defense, and technology sectors.
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