United States Antimony Corporation Announces Expansion Plans at its active Antimony Smelter located in Thompson Falls, Montana
United States Antimony Corporation (USAC) announced a major expansion of its Thompson Falls, Montana smelter, the only operating antimony smelter in the U.S. USAC contracted WSP USA Inc. for engineering and construction to increase production capacity sixfold to over 300 tons per month by the end of 2025, with a budget under $15 million. The project, complemented by the recent Madero Smelter startup in Mexico, aims to reach 500 tons monthly, enhancing U.S. supply chain security without disrupting current operations.









