United States Antimony Corp (NYSE: UAMY)

United States Antimony Corporation's principal business is in the mining, procuring, processing and sale of antimony and precious metals, primarily gold and silver, in Montana and Mexico, and the mining, processing, and sale of zeolite in Idaho. The company also acquires mining claims in Alaska, Montana, and Canada for antimony, tungsten, cobalt and other critical minerals and has entered into an agreement to acquire exploration rights for mining properties located in the southeastern United States. United States Antimony Corporation processes antimony ore to remove impurities, refine particle size, and increase antimony content to make finished products such as antimony trisulfide, antimony oxide or trioxide, and antimony metal ingots. The company mines zeolite at its facility in Idaho for use in various filtration, cattle feed, and environmental applications.

United States Antimony Corporation generates revenue primarily through the sale of antimony products, zeolite products, and precious metals. The company sells antimony trioxide, antimony metal ingots, and antimony trisulfide derived from processing ore sourced from foreign suppliers and its own mining claims. Zeolite is sold in various sizes for applications including water filtration, sewage treatment, nuclear waste cleanup, odor control, gas separation, animal nutrition, soil amendment, and fertilizer. Precious metals, specifically gold and silver recovered during antimony ore processing, are sold back to ore suppliers, representing substantially all of the company's precious metals sales. Revenue is generated from customers primarily in the United States and Canada.

The company operates through the following segments: antimony and zeolite.

• The antimony segment consists of the facility located in the Burns Mining District of Sanders County in Montana that processes ore primarily into antimony trioxide, antimony metal ingots, antimony trisulfide, and precious metals, and the two facilities in the US Antimony de Mexico subsidiary located in Mexico that process ore primarily into antimony metal ingots and a lower grade of antimony trioxide.

• The zeolite segment includes the vertically integrated Bear River Zeolite facility located in Preston, Idaho that mines, processes, and sells zeolite for use in water filtration, absorption of ammonia from underground mining ventilation air, sewage treatment, nuclear waste and other environmental cleanup, odor control, gas separation, animal nutrition, soil amendment and fertilizer, and other miscellaneous applications.

United States Antimony Corporation believes it has a competitive advantage as the only U. S. based domestic processor of antimony products, with short processing times allowing domestic customers to obtain antimony finished products relatively quickly. The company has a long reputation for delivering quality products on a timely basis and operates the only operating, vertically integrated, and permitted antimony smelter located in the United States. Its smelter in Coahuila, Mexico is the largest operating smelter for the processing of antimony products in Mexico. The company estimates its share of the domestic market for antimony trioxide products is around 4% and less than 1% in the international market.

United States Antimony Corporation serves customers primarily in the United States and Canada. Specific customer names include the U. S. Defense Logistics Agency Strategic Materials, which manages the National Defense Stockpile, and an industrial customer with whom the company executed a five-year sales agreement for antimony trioxide in November 2025. The company also sells zeolite products to customers in the animal nutrition industry through a third-party relationship and to various industrial and governmental users for applications such as water filtration, sewage treatment, and environmental cleanup.