United States Antimony Corp Dossier
Qualitative Analysis
Business overview
United States Antimony Corporation (NYSE: UAMY) is a vertically integrated producer and processor of antimony, zeolite, and precious metals (primarily gold and silver). The company operates facilities in Montana, Idaho, and Mexico, and holds exploration claims in Alaska and Canada. It is recognized as a key domestic supplier of antimony, a critical mineral essential for flame retardants, military ordnance, ammunition primers, and storage batteries.
Research as of 19 Jun 2026
Strategic Initiatives
Growth programs, investments, and their expected impact
Modernizing and expanding the capacity of the Thompson Falls smelter in Montana to refine and produce antimony necessary for defense and industrial applications.
Expected impact: Increases total output capacity to over 300 standard tons per month of production output (a sixfold increase over prior capacity).
Acquiring mining claims and leases in Alaska, Montana, and Ontario, Canada to secure domestic feedstock and reduce reliance on third-party antimony ore purchases.
Expected impact: Establishes USAC as the only fully integrated antimony company outside of China and Russia.
Mergers, Acquisitions & Partnerships
Recent deals and strategic collaborations
Recent Acquisitions
Acquisition of a fully operational flotation and gravity mineral processing mill in Montana to support concentration of stibnite and other critical minerals.
Financial impact: Enables processing of gold, silver, copper, tungsten, cobalt, and rare earth ores within 250 miles of the Thompson Falls smelter.
Strategic Partnerships
Collaborating on a new processing plant to process silver, copper, and antimony from non-Chinese sources.
Terms: Not explicitly disclosed.