UAMY Restarts Montana Antimony Mining—Early Return Signals Supply Chain Adaptations

Earlier-Than-Expected Restart Sets the Stage for Production Growth

United States Antimony Corporation (NYSE: UAMY) has resumed operations at its Stibnite Hill property in Thompson Falls, Montana, after a weather-related pause that began last November. Thanks to an unusually mild winter and minimal snowfall, USAC’s teams were able to get back to work ahead of schedule this season.

This restart is pivotal: USAC is the only fully integrated antimony company outside of China and Russia, positioning it as a unique domestic supplier of a critical mineral used in everything from flame retardants to batteries and ammunition.

Production Strategy: Enhanced Logistics and Modernized Reclamation Efforts

Last year, over a two-month span, the company successfully transported more than 800 tons of high-priority antimony ore from the site to its Radersburg Flotation Facility. The concentrate is then refined at the Thompson Falls smelter for USAC’s customer base. This season, USAC aims to repeat—and expand on—this process against the backdrop of improved operational efficiency.

One standout adaptation is the introduction of a chipper to process smaller brush and branches cleared from the mine area. The resulting mulch will support a concurrent land reclamation program, facilitating faster re-vegetation and better long-term site accessibility. Additionally, the company has engaged professional surveyors to install GPS base stations on nearby peaks. Field crews equipped with portable data collectors will use this technology to create detailed maps, enhancing both ore body tracing and environmental compliance documentation.

Expanding Asset Base Adds Depth to USAC’s Critical Minerals Portfolio

Beyond Montana, USAC has acquired mining claims and leases across Alaska, Ontario, and more locations in Montana, seeking to reduce its reliance on third-party ore and broaden its product range. The company’s vertical integration now covers mining, processing, and refining, making it less vulnerable to global supply shocks, especially those linked to China and Russia.

Risks and Forward-Looking Considerations Remain Central

While the restart adds positive momentum, the company acknowledges exposure to typical mining sector risks—price fluctuations in antimony and zeolite, operational hazards, regulatory changes, and broader economic unknowns. Investors should watch for ongoing developments in USAC’s reclamation performance, production volumes, and global antimony market trends.

Key Contacts and Further Information

Bottom Line: Unique Positioning as U.S. Antimony Supply Chain Evolves

As USAC restarts mining ahead of schedule with improved reclamation and mapping strategies, its ability to adapt to supply chain and climate realities could prove valuable in the years ahead. The company’s U.S.-based integrated production model remains a distinguishing factor as the nation looks to strengthen self-sufficiency for critical minerals.

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