What UNITED STATES ANTIMONY CORPORATION does

United States Antimony Corporation (NYSE: UAMY) is a vertically integrated natural-resource and critical-minerals company headquartered in Dallas, Texas, that mines, mills, smelts, and sells antimony products in the United States, Mexico, and Canada. Founded in 1969 and operating the only significant antimony smelter in the United States at Thompson Falls, Montana (with 15 million pounds per year of antimony oxide capacity or 5 million pounds per year of antimony metal), USAC controls the full antimony supply chain from raw ore to finished metal and oxide. Its core product line includes antimony oxide, antimony metal, antimony trisulfide (MIL SPEC certified in 2023), and sodium antimonate, sold to defense, industrial flame-retardant, battery, and semiconductor customers. The company also produces Bear River Zeolite (clinoptilolite) from Idaho for agricultural, water-treatment, and environmental applications, and has expanded into tungsten (Fostung project, Ontario) and cobalt.

USAC's revenue model is dominated by B2B direct sales of physical minerals and oxide products, with FY2025 revenue of $39.3 million (+163% YoY) split primarily between antimony ($35.4M, +219% YoY) and zeolite ($3.4M, +14%). Pricing for antimony is contract-based and varies with commodity conditions; government contracts are negotiated through the Defense Logistics Agency and Department of War. The company's go-to-market is enterprise field sales targeted at U.S. defense procurement agencies and industrial manufacturers. Following China's late-2024 ban on antimony exports and a 230% rise in average selling price per pound in FY2025, USAC secured a five-year $245 million sole-source DLA contract for antimony metal ingots (September 2025) and a $27 million Defense Production Act Title III award (March 2026), bringing signed Pentagon and DPA contracts to $354 million. Management has guided 2026 gross revenue to $125 million, with nine new gas-fired smelter furnaces commissioned at Thompson Falls in June 2026 expected to triple or quadruple output.

Name

UNITED STATES ANTIMONY CORPORATION

Legal name

United States Antimony Corporation

Website

https://usantimony.com

Company type

Public

Founded year

1969

Operating status

Operating

Headcount range

51–100 employees

Short description

United States Antimony Corporation (NYSE: UAMY) is the only significant vertically integrated antimony producer in the United States, mining, milling, and smelting antimony oxide, metal, and trisulfide from facilities in Montana, Mexico, Alaska, and Canada for U.S. defense, flame-retardant, battery, and semiconductor customers.

Ownership category

akta.pro rank

Product category

Critical Minerals Mining & Processing

NAICS

Nonferrous Metal (except Aluminum) Production and Processing (3314)

SIC

Metal Mining (1000), Primary Smelting & Refining Of Nonferrous Metals (3330)

akta.pro primary industry

Battery & Critical Minerals Trading (Lithium, Cobalt, Graphite, Manganese, Rare Earths) (IMAKAJAE)

akta.pro secondary industry

Precious Metals Smelting & Refining (IMAKAEAE)

Keywords

• Antimony mining
• Critical minerals processing
• Zeolite production
• Defense stockpile supply
• Tungsten exploration

Headquarters

HQ city

Dallas

HQ country

United States

HQ region

North America

Offices9 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Antimony Products: USAC generates the majority of revenue from antimony products including antimony oxide, sodium antimonate, and antimony metal sold to defense, industrial, and technology customers. FY2025 antimony revenue was $35.4 million, up 219% year-over-year driven by higher average selling prices and strong market demand.
2. U.S. Government Defense Contracts: USAC holds $354 million in signed Pentagon and Defense Production Act contracts, including a $245 million DLA contract for antimony metal ingots to replenish the U.S. national defense stockpile, and a $27 million Department of War award under Title III of the Defense Production Act for domestic critical mineral expansion.
3. Zeolite Products: Bear River Zeolite (BRZ) products sold for agricultural, industrial, and environmental applications. FY2025 zeolite revenue was $3.4 million, up 14% year-over-year.
4. Cobalt and Tungsten: USAC expanded into cobalt and tungsten critical minerals, including the Fostung tungsten project in Ontario, Canada with inferred resources of approximately 54 million pounds of tungsten trioxide.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels9 records

Core offering

United States Antimony Corporation mines, mills, smelts, and sells antimony products (antimony oxide, antimony metal, antimony trisulfide, sodium antimonate) from facilities in Montana and Mexico, plus Bear River Zeolite from Idaho. The company also processes cobalt and is developing tungsten through the Fostung project in Ontario. Operations are vertically integrated from raw ore to finished product.

Product overview

United States Antimony Corporation (USAC) is a vertically integrated critical minerals company operating mining, milling, smelting, and refining operations across North America. The company produces antimony products (oxide, metal, trisulfide, sodium antimonate) from facilities in Montana and Mexico, with mining claims in Alaska and the Fostung tungsten project in Canada. USAC also produces Bear River Zeolite (BRZ) high-purity clinoptilolite from Idaho for water filtration, agriculture, and environmental remediation applications. The company operates the only significant antimony smelter in the United States and is expanding capacity with a new nine-furnace smelter in Thompson Falls, Montana and a joint venture hydrometallurgical facility in Idaho with Americas Gold and Silver. Revenue guidance for 2026 is $125 million supported by $354 million in government and commercial contracts.

Differentiator

Problem solved

Functional benefit

Brands

• BRZ Zeolite: Bear River Zeolite (BRZ) - high-grade natural clinoptilolite zeolite product line for agriculture, water treatment, and industrial applications
• Montana Brand Antimony Oxides

Products and services

• Antimony Oxide (Sb2O3) Fine white powder antimony trioxide produced exclusively by sublimation of antimony metal under rigid furnace conditions. Used as flame retardant synergist with halogens in plastics, rubber, fiberglass, textiles, paints, and coatings; as catalyst for polyester resin and PET bottle production; and as opacifier for porcelains. Sold to flame retardant, glass, polymer, and industrial manufacturers.
• Antimony Metal Pure antimony metal (atomic weight 121.76, melting point 630°C, boiling point 1380°C) sold for use in bearings, storage batteries, and ordnance. Sold under a $245 million five-year DLA sole-source contract for 6.7 million pounds of antimony metal ingots to replenish the U.S. national defense stockpile. Emerging applications include next-generation semiconductor material with charge mobility significantly higher than silicon.
• Antimony Trisulfide (Sb2S3) Manufactured compound found naturally as stibnite or metastibnite, used in safety matches, military ammunition, explosives, fireworks, ruby-colored glass, and plastics as flame retardant. Also used as photoconductor in vidicon camera tubes and as semiconductor material. Produced under MIL SPEC certification approved by DOD/DLA in March 2023.
• Sodium Antimonate Fining agent for glass in cathode ray tubes and flame retardant compound. Serves as degasser in CRT glass manufacturing and opacifier for porcelains.
• Bear River Zeolite (BRZ) High-purity natural clinoptilolite zeolite (85-95% pure) from volcanic ash deposits in Preston, Idaho, with production capacity up to 120 tons per hour. Features high cation exchange capacity (CEC), low sodium content, high potassium content, and superior hardness. OMRI Listed for certified organic production. Used in water filtration, agriculture, soil amendment, animal feed, odor control, and environmental remediation including nuclear waste treatment.
• Cobalt Hard, lustrous ferromagnetic transition metal valued for high-temperature strength, magnetic properties, and electrochemical performance. Primary end-uses include rechargeable batteries (EV lithium-ion cathodes, consumer electronics), superalloys for aerospace and defense, and industrial applications.
• Tungsten (WO3) Exceptionally hard, dense metal with melting point above 3,000°C. USAC's Fostung project in Ontario contains inferred mineral resources of approximately 54.2 million pounds of WO3. Applications include tungsten carbides for drilling/construction tools, steel superalloys, ammunition, armor, and military uses.

Quantifiable outcome

• 163% year-over-year revenue increase to $39.3 million in FY2025
• +3 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core, flagship and minor.

• Americas Gold and Silver CorporationcoreStrategic or Co-development Partner · 10 February 2026Joint venture to construct and operate a hydromet processing facility in Idaho's Silver Valley. 51% ownership Americas Gold and Silver, 49% USAC. USAC serves as managing member. Facility will process antimony, silver, and copper from Americas' adjacent Galena Complex mines, representing the first commercial-scale hydromet processing center in North America. JV aims to improve mineral recovery rates and capture downstream processing profits while strengthening U.S. critical mineral security.
• U.S. Defense Logistics AgencyflagshipGTM or Marketing Partner · 30 September 2025IDIQ sole source contract worth up to $245 million awarded to USAC for production of antimony metal ingots for the DLA to replenish the U.S. national defense stockpile. First order for approximately $10 million was announced on September 30, 2025. The five-year contract covers 6.7 million pounds of antimony metal ingots.
• Independent Alaska MinersminorChannel Partner/ Reseller/ DistributorUSAC is partnering with independent Alaska miners and responsible operators to purchase and process antimony-bearing materials already in production. This approach supports local producers and strengthens Alaska's role in America's supply chain.
• Webster Farm, L.L.C.minorStrategic or Co-development PartnerBRZ lease agreement with Webster Farm, L.L.C. for surface mining and processing zeolite on property near Preston, Idaho. Royalty payment structure with minimum annual royalty of $60,000.

Scale indicators20 records

Recent moves8 records

Expansion highlights7 records

Direct peers

• Perpetua Resources Corp. Perpetua Resources is developing the Stibnite Gold Project in Idaho, which contains significant antimony as a byproduct alongside gold. As another U.S.-based antimony development project, it is the most directly comparable peer to USAC's antimony business, competing for the same domestic critical minerals narrative and government contracts.
• Mandalay Resources Corporation: Mandalay Resources operates the Costerfield gold-antimony mine in Australia and the Bjorkdal gold mine in Sweden. It is one of the few publicly traded producers of primary antimony globally, making it a direct comparable on antimony mining, processing, and end-market exposure (including defense applications).
• Americas Gold and Silver Corporation: Americas Gold and Silver is USAC's joint venture partner (51/49 split) for the hydromet processing facility in Idaho's Silver Valley and operates the adjacent Galena Complex producing silver, copper, and antimony-bearing material. The partnership creates deep operational and strategic linkage, with both companies addressing U.S. critical minerals supply.

Broad incumbents

• MP Materials Corp. MP Materials operates the Mountain Pass rare earth mine and processing facility in California, making it the dominant U.S. critical minerals producer. While focused on rare earths rather than antimony, MP represents the established U.S. critical minerals public-market narrative and competes for the same defense procurement and government reshoring capital.
• Energy Fuels Inc. Energy Fuels is a U.S.-based critical minerals company producing uranium, vanadium, and rare earth elements. Like USAC, it leverages government policy support for domestic critical minerals supply, has multiple non-core mineral expansion projects, and competes for the same pool of critical minerals-focused investors.
• Albemarle Corporation: Albemarle is the world's largest lithium producer and a major player in bromine and catalysts. As a global leader in battery materials, Albemarle represents the incumbent scale player in the critical minerals/battery materials space where USAC is positioning its antimony-for-batteries opportunity.
• Hecla Mining Company: Hecla Mining is the largest silver producer in the U.S., operating mines in Idaho (Lucky Friday), Alaska (Greens Creek), and Quebec. USAC's Montana operations produce silver and gold as byproducts of antimony processing, and Hecla's Idaho presence (near USAC's zeolite and JV operations) makes it a regional mining comparable.
• Newmont Corporation: Newmont is the world's largest gold mining company and a major source of antimony as a byproduct of gold operations. USAC board member Joseph Carrabba previously served on Newmont's board. Newmont represents the large-scale gold mining benchmark against which USAC's smaller-scale gold/silver byproduct revenues from antimony processing should be evaluated.

Emerging players

• USA Rare Earth, LLC: USA Rare Earth is developing domestic rare earth and critical minerals processing capabilities, including magnet manufacturing. While focused on rare earths rather than antimony, it represents the broader U.S. critical minerals startup ecosystem that competes for the same federal funding, policy attention, and investor capital as USAC.

Others

• Cleveland-Cliffs Inc. Cleveland-Cliffs is a major U.S. mining company producing iron ore, steel, and other materials. USAC board member Joseph Carrabba was Chairman, President and CEO of Cliffs (2007-2013) and previously served as President and COO of Diavik Diamond Mines. Cliffs is not directly comparable in product but is relevant given board-level mining expertise overlap.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/NYSE_UAMY
• YouTubeyoutube.com/@NYSE_UAMY
• Facebookfacebook.com/usantimonycorporation
• LinkedInlinkedin.com/company/united-states-antimony-corporation
• Instagraminstagram.com/usantimonycorp?igsh=MWV0ZjNsZXRudnYxbA==

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries4 records

Funding overview

Funding rounds6 records

Investors2 records

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M&A

Investments2 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about UNITED STATES ANTIMONY CORPORATION