US Antimony hauls 576 tons of 10%-grade stibnite ore from Montana mine in 2026 campaign
UAMY•Strategic supply update
The update supports a strategy to expand domestically sourced antimony feedstock, reducing reliance on third-party and foreign ore purchases.
Processing and smelting path
Ore is processed at the Radersburg flotation mill; concentrate is shipped to the Thompson Falls smelter or the Madero smelter in Mexico.
Ore haulage campaign from Stibnite Hill
United States Antimony reported 42 truckloads of stibnite ore hauled from Stibnite Hill in 2026, totaling 576 tons at about 10% antimony.
Current haulage pace runs about three truckloads per operating day, or about 42 tons per day.
Daily haulage rate is more than 2x the 2025 campaign, which moved about 800 tons over 45 days.
