8-K: US Antimony Unveils Hydromet Breakthrough, Secures Bolivian Supply

United States Antimony Corporation announces a new commercial-scale hydrometallurgical processing advancement for critical minerals, securing exclusive supply from a 15x expanded Bolivian facility.

Summary

• USAC has been funding and assisting since mid-2025 in developing a new commercial-scale hydrometallurgical (hydromet) processing facility in Bolivia for refining antimony and other critical minerals.
• USAC's financial assistance led to the Bolivian facility expanding 15 times its original size and output.
• USAC holds an exclusive contract to receive processed antimony flake from this facility.
• The first shipment of approximately 150 tons is expected in February/March 2026 at USAC's expanded Thompson Falls smelter.
• The high quality of this material is anticipated to significantly increase thruputs at USAC's smelters and meet military specifications.
• USAC plans to duplicate this patented hydromet process in one or more new facilities in the Western USA and/or Alaska, under its control.
• The hydromet process can refine stibnite and tetrahedrite concentrates, with byproducts including silver (from stibnite residue) and copper and silver (from tetrahedrite residue).
• USAC filed a request with the Department of Energy (DOE) on January 15, 2026, for $44 million in funding for a new US facility utilizing this hydromet process.
• The company is also pursuing a similar application for an award from the Department of War (DoW) for a new facility near Montana.

Sentiment

Score: 8

Explanation: StockSavvy.ai views this as a highly positive development, demonstrating significant technological advancement, strategic supply chain securing, and strong potential for government support, which could substantially enhance USAC's market position and operational capabilities.

Positives

• Secured exclusive access to commercial-scale hydromet processed antimony from a 15x expanded Bolivian facility.
• Anticipated receipt of 150 tons of high-quality antimony flake in Q1 2026, expected to significantly increase thruputs at USAC's smelters.
• The processed material can meet military specifications, opening new market opportunities.
• USAC has an exclusive license to duplicate this patented process in North America and Australia.
• The hydromet process allows USAC to refine sub-par antimony (less than 10% stibnite) into mil-spec finished material, which was previously not possible with conventional smelters.
• Potential for significant government funding ($44 million from DOE, plus a DoW award) for new US-based hydromet facilities.
• Positions USAC at the forefront of antimony processing technology, enhancing its role as the only fully integrated antimony company outside China and Russia.
• The process allows for recovery of valuable byproducts like silver and copper.

Risks

• Fluctuations in market prices and demand for antimony, zeolite, other critical minerals, and precious metals.
• Changes in domestic and global economic conditions.
• Operational risks inherent in mining and mineral processing.
• Geological or metallurgical conditions.
• Availability and cost of energy, equipment, transportation, and labor.
• Ability to maintain or obtain permits, licenses, and regulatory approvals.
• Changes in environmental and mining laws or regulations.
• Competitive factors.
• Impact of geopolitical developments.
• Effects of weather, natural disasters, or health pandemics on operations and supply chains.
• Actual events or results may differ materially from forward-looking statements.

Future Outlook

USAC anticipates announcing the duplication of the new hydromet facility with additional patented processes in one or more new facilities located in the Western USA and/or Alaska, which will be controlled by the company. The company also expects to receive the first 150 tons of processed antimony flake in February/March 2026 and is actively pursuing significant government funding from the DOE and DoW for new state-of-the-art antimony processing facilities in North America. USAC intends to continue leading antimony processing by utilizing both traditional and new proprietary technologies to meet industrial and government demands.

Management Comments

• "We have been quietly working with another company that has a group of engineers and chemists from around the world that have specifically developed a commercial scale hydromet project in Bolivia." Aaron Tenesch, VP, Antimony Division
• "USAC has funded the majority of the cost to develop and construct the new facility." Aaron Tenesch, VP, Antimony Division
• "As part of this co-operative work agreement, USAC has obtained an exclusive right via a license to duplicate this process in North America and Australia." Aaron Tenesch, VP, Antimony Division
• "While our initial applications are strictly geared to antimony, we know other critical minerals can be refined using similar methods and equipment." Aaron Tenesch, VP, Antimony Division
• "There has been a lot of talk within the mining industry about hydromet, but we are the first to bring this processing technology to market in a commercial scale." Aaron Tenesch, VP, Antimony Division
• "This process, in conjunction with our concentrating facilities, allows us to take sub-par antimony (less than 10% stibnite) and produce finished material meeting military specifications (mil-spec). We are unable to achieve these final steps with our conventional gas fired smelters and many of the ores available today." Aaron Tenesch, VP, Antimony Division
• "On January 15, 2026, USAC filed with the DOE (Department of Energy) a request for funding for a program total of $44 million associated with our hydromet process developed in Bolivia for a new facility to be located in the USA." Gary C. Evans, Chairman and CEO
• "Additionally, the Company is working on a similar application for an award from the DoW (Department of War) for this process in a new location near the State of Montana." Gary C. Evans, Chairman and CEO
• "These new location(s) will be state of the art antimony processing facilities in North America." Gary C. Evans, Chairman and CEO
• "USAC intends to continue to be at the forefront of antimony processing utilizing not only proprietary traditional technology and processes but also new technology in an effort to meet the needs of both our industrial customers and the various divisions of the United States Government, with whom we are working with on many different fronts on a regular basis." Gary C. Evans, Chairman and CEO

Industry Context

StockSavvy.ai notes that the development of commercial-scale hydrometallurgical processing for critical minerals like antimony represents a significant advancement in the mining industry, particularly given the increasing global demand for secure and diversified supply chains for strategic materials. This move by USAC, positioning itself as the first to bring this technology to market at a commercial scale outside of China and Russia, could provide a competitive edge by enabling the processing of lower-grade ores to military specifications, a capability often lacking in conventional smelters. The focus on North American facilities and government funding aligns with broader national security and critical mineral independence initiatives in the U.S.

Comparison to Industry Standards

• The filing highlights USAC as the "only fully integrated antimony company in the world outside of China and Russia," setting a high bar for its operational scope compared to other regional players.
• The ability to process "sub-par antimony (less than 10% stibnite)" into "finished material meeting military specifications (mil-spec)" is a key differentiator, as conventional gas-fired smelters are stated to be unable to achieve these final steps with many available ores. This suggests a technological advantage over traditional processing methods used by competitors.
• While specific comparable companies or projects are not named in the filing, the emphasis on commercial-scale hydromet processing and meeting mil-spec requirements positions USAC against global antimony producers, many of whom operate with different technological capabilities and geopolitical constraints.

Stakeholder Impact

• Shareholders: Potential for increased revenue, profitability, and market share due to enhanced processing capabilities, secured supply, and government partnerships, leading to potential share price appreciation.
• Employees: Potential for job creation and skill development in new advanced processing facilities in North America.
• Customers: Access to high-quality, military-spec antimony products, potentially with more stable supply chains, especially for defense and industrial sectors.
• Suppliers: Continued demand for third-party ore, including lower-grade stibnite and tetrahedrite concentrates, which can now be processed.
• Government/Regulatory Bodies: Supports national critical mineral independence and defense initiatives, potentially strengthening relationships with government agencies.

Next Steps

• First product receipt of approximately 150 tons of processed antimony flake anticipated in February/March 2026.
• Announcing the duplication of the new hydromet facility with additional patented processes in one or more new facilities in the Western USA and/or Alaska.
• Pursuing the $44 million funding request from the Department of Energy (DOE) for a new US facility.
• Working on a similar application for an award from the Department of War (DoW) for a new facility near Montana.
• Continuing to work with the United States Government on various fronts.

Key Dates

Recommendation

The announcement details a transformative technological advancement in hydrometallurgical processing, securing an exclusive, expanded supply of critical antimony from Bolivia, and the strategic intent to replicate this patented process in North America with significant government funding applications. This positions USAC as a leader in critical mineral processing outside of major geopolitical rivals, capable of producing military-specification materials from lower-grade ores. These developments significantly de-risk future supply, enhance operational capabilities, and open substantial market opportunities, making the stock a strong buy for long-term investors focused on critical minerals and national security supply chains.

Keywords

Antimony, Hydrometallurgy, Critical Minerals, Zeolite, Mining, Mineral Processing, SEC Filing, UAMY, Bolivia, Military Specification, DOE Funding, Electrowinning, Stibnite, Tetrahedrite, Supply Chain