United States Antimony Corporation, also known as US Antimony, is a materials company focused primarily on the production and sale of antimony products. Its product portfolio includes antimony oxide and antimony metal, which are used in applications such as flame retardants, pigments, ceramics, glass, and metal alloys.
The company also produces precious metals and operates in the zeolite market through its Bear River Zeolite business. Zeolite products are used in areas including water treatment, filtration, animal nutrition, agriculture, and industrial applications. US Antimony has historically sourced and processed antimony-bearing materials from North America and other regions, including Mexico, and serves customers in domestic and international markets.
Founded in 1971, US Antimony is headquartered in Thompson Falls, Montana, where it maintains processing operations. The company’s activities are centered on specialty mineral processing and the manufacture of products used by industrial, commercial, and agricultural customers.
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