Perpetua Resources and United States Antimony Corporation Sign Testing Agreement to Support National Interest

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United States Antimony Corporation ("USAC", or the "Company"), (NYSE: UAMY), a leader in the processing of critical minerals, has announced today that it has entered into a formal Metallurgical Testing Agreement ("MTA") with Perpetua Resources Corp. (PPTA / PPTA) ("Perpetua Resources" or "Perpetua") to evaluate stibnite-rich (antimony) material from Perpetua's Stibnite Gold Project located in Idaho.

Through the agreement, Perpetua will supply samples of antimony ore and assay work for evaluation at USAC's Montana facility. The purpose of the testing is to allow both companies to evaluate antimony product specifications that may be able to be commercially produced from Perpetua ore at USAC's processing plant. The companies, however, have not entered into any joint agreements for commercial production at this evaluation stage.

Gary C. Evans, Chairman and Co-CEO of USAC commented, "It is no secret that antimony prices world-wide continue to hit fresh record highs after a prolonged period of supply constraints. The upswing in prices has gathered pace which is underpinned by depleting domestic antimony resources in China as well as other parts of the world. As stated by the ministry of China this week, "the export of gallium, germanium, antimony and superhard materials to the United States shall not be permitted." Prices of antimony trioxide in Rotterdam have soared 230% since the beginning of the year to over $39,000 per metric ton. The announcement today between US Antimony and Perpetua Resources is a move in the right direction to advance the concept of an integrated and solely domestic supply chain for production of antimony and the processing of this material through the only primary antimony smelter currently available in the United States. The demand for finished products around antimony are not only needed for our munition requirements from the Department of Defense, but are sorely needed by many domestic industrial companies that utilize antimony in their finished products, such as solar panels, semiconductors, fire retardants, roofing materials, etc. Our two companies are exploring ways to address these needs expeditiously by agreeing to cooperate in technical evaluations necessary to support industries essential to the U.S. economy and our national security, as evidenced by today's announcement."

"Now, more than ever, it is important that we focus on opportunities to get American minerals to American manufacturers," said Jon Cherry, CEO of Perpetua Resources. "The Stibnite Gold Project contains the largest near-term opportunity to secure American antimony and identifying domestic processing opportunities is important to our ability to supply antimony for America's defense, energy, and technology industries."