United States Antimony provides updates on antimony procurements

Bolivia: Antimony flake will be the primary type of material to be received from Bolivia where a definitive contract has recently been executed. This material will go directly to our processing plant located in Thompson Falls, Montana. Initial shipments will be approximately 10 metric tons to be delivered in August with the intent of ramping up to 150 metric tons per month by early 2026. This additional supply will coincide with the completion of our expansion efforts at Thompson Falls to be completed by year-end. Additional new antimony supplies from other Bolivian miners continue to be negotiated by management. Canada: Our Thompson Falls, Montana smelter continues to receive significant quantities of material from a large long-time supplier located in Canada. Total tonnage received through the six months ended June 30, 2025, was 857 tons. This compares to 388 tons received during the same period in 2024, a 121% increase in volume. Our current inventory of raw material yet to be processed at TF is approximately 285 tons, our largest inventory in history. As USAC continues our build-out expansion efforts at this smelter, we have also been refurbishing existing furnaces. One furnace was successfully completed in the second quarter with a second one in progress. In an effort to attract additional qualified personnel and add more jobs at our Thompson Falls, Montana facility, hourly wages were increased for all personnel in early July. Chad: Contracts have recently been completed for initial shipments of antimony to be delivered from the country of Chad beginning in August from two separate sources. Approximately 80 metric tons are anticipated to be our first delivery into the Madero Smelter in August. It is expected that monthly shipments in excess of 100 metric tons will commence thereafter. The quality of the material meets our minimum requirements for the Thompson Falls facility and is approximately 60%+ antimony. Mexico: USAC has historically owned and operated antimony mining properties located in Mexico with limited success in the past due to much lower commodity prices and high costs of production from lower grade ore. When new management made the decision to shut down all Mexican operations in March of 2024, it was based upon sound historical financial data. In April of 2025, we restarted the Madero Smelter based upon new international supplies and the over 500% increase in the price of antimony. However, we continued the decision to no longer perform actual mining operations in Mexico for many reasons. This year we have been approached by both international and Mexican companies seeking access to these mining assets, some of which are “grandfathered” from the new Mexican governmental regulations, which demonstrate a clear retreat from prior support of mining growth, with significantly reduced issuance of new concessions and limited expansion of existing operations. These negotiations are ongoing and could prove to be most beneficial to USAC with dedicated new supplies of antimony from these properties, along with other mines located in Mexico. It is important to note that the Chinese have moved into Mexico in their attempt to capture and tie up antimony supplies. However, we are in a very unique position of owning both a flotation facility and the only operating smelter in Mexico. These existing assets give us distinctive negotiating leverage concerning antimony deposits located in Mexico. Montana: As announced in a Press Release dated July 3, 2025, USAC has re-acquired surface acreage and mining rights exceeding 1,200 acres immediately adjacent to our Thompson Falls Smelter. With certain required permits in hand, and waiting on others from certain authorities, the Company will begin providing quantities of stibnite to our smelter within the next several months. As more groundwork and geological review is completed, it is anticipated that this new supply will ramp up as the year progresses to begin meeting our additional supply needs with our expansion efforts underway at the TF Facility to be completed by year-end 2025.