300亿美元的转变：关键矿产进入新时代

"The Critical Minerals and ZEO Company" DALLAS, TX / ACCESS Newswire / January 28, 2026 /United States Antimony Corporation ("USAC," "USAntimony," or the "Company"), (NYSE American:UAMY)(NYSE Texas:UAMY), a leading producer andprocessor of antimony, zeolite, and other critical minerals, and the only fully integrated antimony company in theworld outside of China and Russia, announced today that it has been involved since mid-2025 in funding andassisting with the development of a new hydrometallurgical (hydromet) processing facility for refining antimonyand other critical minerals on a commercial scale associated with a project located in the country of Bolivia. Ourfinancial assistance has allowed this facility to expand 15 times its original size and output. USAC has anexclusive contract to receive the processed "antimony flake" from this Bolivian based facility to the USAC North Additionally, USAC anticipates announcing, in the near future, the duplication of this new facility with additionalpatented processes in one or more new hydromet facilities to be located in the Western USA and/or Alaska and HYDROMETALLURGICAL PROCESSING USAC intends to construct a diverse processing facility using hydrometallurgical techniques to produce antimonyand other critical minerals. The target feeds are stibnite concentrate or tetrahedrite concentrate with the ability toadapt to other feeds of metallic concentrates or high-grade ores containing critical materials. The processing ofstibnite and tetrahedrite concentrates are very similar, except for the byproduct residue(s) leaching process. Theleaching residue of the stibnite concentrate (residual after antimony extraction) can be subjected to precious In practice, the antimony containing concentrate is batch leached in a hot solution in mild steel tanks. The leachsolution is created with a mixture of depleted electrolyte from the downstream electrowinning process, and otherreagents. The solution matrix then solubilizes the antimony and any arsenic, except arsenopyrite. The leached ELECTROWINNING The leach solution primarily contains antimony in the form of thio-antimonate complexes. This solution serves asfeed for the antimony electrowinning circuit where antimony metal is recovered on the cathode. The catholyte is made from the antimony leach pregnant solution (i.e., pregnant catholyte). Antimony metal isdeposited on the cathode plates as a brittle non-adherent layer, and it is harvested at regular intervals by briefly MANAGEMENT COMMENTS Commenting on this new commercial sized application, Mr. Aaron Tenesch, Vice President of USAC'sAntimony Division stated, "We have been quietly working with another company that has a group of engineersand chemists from around the world that have specifically developed a commercial scale hydromet project inBolivia. USAC has funded the majority of the cost to develop and construct the new facility. As part of this co-operative work agreement, USAC has obtained an exclusive right via a license to duplicate this process in NorthAmerica and Australia. While our initial applications are strictly geared to antimony, we know other criticalminerals can be refined using similar methods and equipment. There has been a lot of talk within the mining Further commenting on today's announcement, Mr. Gary C. Evans, Chairman and CEO of USAC stated, "OnJanuary 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 theUSA. Additionally, the Company is working on a similar application for an award from the DoW (Department ofWar) for this process in a new location near the State of Montana. These new location(s) will be "state of the art"antimony processing facilities in North America. USAC intends to continue to be at the forefront of antimony About USAC: United States Antimony Corporation and its subsidiaries in the U.S., Mexico, and Canada ("USAC," "U.S.Antimony," the "Company," "Our," "Us," or "We") sell antimony, zeolite, and precious metals primarily in theU.S. and Canada. The Company processes third party ore primarily into antimony oxide, antimony metal,antimony trisulfide, and precious metals at its facilities located in Montana and Mexico. Antimony oxide is usedto form a flame-retardant system for plastics, rubber, fiberglass, textile goods, paints, coatings, and paper, as acolor fastener in paint, and as a phosphorescent agent in fluorescent light bulbs. Antimony metal is used inbearings, storage batteries, and ordnance. Antimony trisulfide is used as a primer in ammunition. The Companyalso recovers precious metals, primarily gold and silver, at its Montana facility from third party ore. At its Bear Learn more about United States Antimony Corporation at www.usantimony.com. Forward-Looking Statements: This press release contains forward-looking statements within the meaning of the Priv