Company Profile: United States Antimony Corporation (NYSE American: UAMY)
United States Antimony Corporation (USAC) is a leading vertically integrated natural resource company focused on the production and sale of antimony, zeolite, and precious metals. Founded in 1968 and headquartered in Thompson Falls, Montana, USAC is distinguished as the only significant fully integrated producer of antimony in the United States and the only primary antimony smelter in North America. The company plays a critical role in the domestic supply chain for antimony, which the U.S. government designates as a critical mineral essential for national security, defense, and high-technology applications.
Core Mission and Strategic Standing
The primary mission of USAC is to provide a secure, domestic source of critical minerals to reduce North American reliance on foreign suppliers, particularly China and Russia, who control the vast majority of the global antimony market. By controlling its own mining, smelting, and refining operations across the U.S., Mexico, and Canada, USAC aims to be the lowest-cost producer of high-grade antimony products in the "free world."
In late 2025 and early 2026, the company entered a transformative growth phase, securing a massive $245 million contract with the U.S. Defense Logistics Agency (DLA) to replenish the National Defense Stockpile. This contract positions USAC as a cornerstone of U.S. military readiness, providing the high-purity antimony metal required for munitions, armor-piercing rounds, and military electronics.
Products and Services
USAC operates through two primary reporting segments: Antimony and Zeolite, supported by a Precious Metals recovery division.
1. Antimony Segment
Antimony is a versatile element used primarily as a hardening agent in alloys and as a synergist in flame retardants. USAC processes both third-party ore and its own mined materials into several specialized forms:
Antimony Oxide (Antimony Trioxide): A fine white powder used in conjunction with halogens to create flame-retardant systems for plastics, textiles, rubber, and paints. It is also used as a catalyst in the production of PET plastics (bottles) and as a de-foaming agent in glass manufacturing.
Antimony Metal (Ingots and Shot): High-purity metal used to harden lead for ammunition, lead-acid batteries, and bearings. It is also a critical component in semiconductors, night vision goggles, and laser-guided missiles.
Antimony Trisulfide: A specialized chemical used primarily as a primer in ammunition and ordnance, as well as in the production of friction materials like brake pads.
Sodium Antimonate: Primarily utilized as a fining agent (degasser) for high-quality glass and as a specialized flame retardant.
2. Zeolite Segment (Bear River Zeolite)
Operating through its subsidiary in Preston, Idaho, USAC mines and processes one of the highest-quality clinoptilolite zeolite deposits in the world. Zeolite is a volcanic mineral with a "honeycomb" molecular structure that allows it to act as a molecular sieve for filtration and ion exchange.
Environmental Remediation: Used to remove heavy metals and radioactive isotopes (strontium, cesium) from wastewater and nuclear waste sites.
Water Filtration: Employed in municipal water systems, swimming pools, and hatcheries to remove ammonium and suspended solids.
Agriculture and Soil Amendment: Enhances fertilizer efficiency by holding nitrogen and moisture in the root zone, widely used in golf courses and high-value crop farming.
Animal Nutrition: Used as a feed additive to improve growth rates and control ammonia odors in livestock facilities.
3. Precious Metals Recovery
As a byproduct of its antimony smelting process in Montana, USAC operates a refinery that recovers precious metals from complex ores.
* Gold and Silver: The company recovers unrefined and refined gold and silver from third-party materials and its own domestic mining claims, providing a secondary high-value revenue stream.
Global Infrastructure and Facilities
Thompson Falls, Montana: The company?s flagship facility, containing a primary antimony smelter with an annual capacity of 15 million pounds of oxide, and a precious metals refinery.
Madero, Mexico: A recently restarted and refurbished smelter (April 2025) that provides additional smelting capacity and processes ore from Mexican mining districts.
Stibnite Hill, Montana & Alaska: New domestic mining operations and claims aimed at achieving a 100% "Mine-to-Metal" domestic supply chain.
Bolivian Partnership: In 2026, USAC announced a major expansion involving a hydrometallurgical processing facility in Bolivia to supply high-quality "antimony flake" to its North American smelters.
Leadership and Financial Growth
Led by Chairman and CEO Gary C. Evans, USAC has seen record financial performance in 2025, with revenues tripling due to surging antimony prices and new long-term supply agreements. The company maintains a strong balance sheet with approximately $64 million in cash and federal securities (as of late 2025) to fund its continued infrastructure expansion.
Please note: This information is generated by AI. For legal use, verify with company sources.
