United States Antimony Corporation

Changes in United States trade policies, including the imposition of tariffs and retaliatory tariffs, may adversely impact our business, financial condition, and results of operations. Potential tariffs and trade restrictions may, among other things, cause the prices of ore and our product upon import into the US to increase, which could reduce demand for such products given the increased cost, and have a material adverse impact on our revenues, financial condition, and results of operations. In addition, to the extent changes in the political environment have a negative impact on us or on the markets in which we operate our business, our results of operations and financial condition could be materially and adversely impacted in the future.

Mining exploration, development, and production may not be economically viable. Our properties do not contain n July 24, 2025, the Company published its technical report summary (TRS) in accordance with the mineral reserving property disclosure rules as definspecified under SEC Sin subpart 1300 of Regulation S-K (S-K 1300) or Canadian National Instrument 43-101 (NI 43-101). See Cautionary Notn its zeolite mineral deposit located in Preston, Idaho. This TRS is an exhibit to the Form 8-K filed by the Company on July 25, 2025. However, the Concerning Disclosure mpany has not completed a TRS for any of Mineral Resources, aboveits other properties. Until mineral reserva TRS is completed for the Companys properties or mineral resources ain accordance with SK 1300 or Canadian National Instrument 43-101 (NI 43-101), there mined and processed, can be no guarantee or assurance of the contents, quantity o, or grade of mineral resources and grades must be considered as estimates only and may be inaccurate. The Company is inor reserves at the location. Any indication of the contents, quantity, or grade of minerals at these process of completing a technical report summperties can be materially inaccurate. See Cautionary documentNote Concerning the estimatDisclosure of total mMineral rResources and reserves associated with the zeolite mine under lease. We , above. In addition, we have not established proven or probable reserves, as defined under S-K 1300 or NI 43-101, through the completion of a feasibility study for any of our these mining claims and leases. As a result, there is increased uncertainty and risk that may result in economic and technical failure which may amaterially adversely impact our future profitability, financial condition, and results of operations.

Processing and selling ore from new suppliers and internal sources may not be economically viable. Ore sourced from new suppliers as well as ore sourced from our mine sites may not be able to be processed profitably, which could have a material adverse effect on our results of operations and financial condition.

More risk associated with non-domestic supply of antimony ore. The Company purchases ore from non-domestic suppliers, each purchase of which is typically for a material amount. There are many risks associated with purchasing ore from non-domestic suppliers. Due diligence is performed on each supplier, however, there can be no assurance that the information obtained is credible or accurate. In addition, there is no guarantee that the suppliers product will be delivered to the Company, even after payment is made by the Company. Also, there can be no assurance that the product content, quantity, or grade will be as expected. As a result, there is increased uncertainty and risk related to purchasing product from non-domestic suppliers that could materially adversely impact our future profitability, financial condition, and results of operations.

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