UNITED STATES ANTIMONY CORPORATION
Vertically integrated critical-minerals company focused on mining, beneficiation, processing and sale of antimony, clinoptilolite zeolite, and recovered precious metals. Operates processing facilities and mills in Montana and Mexico, owns a zeolite deposit and processing operation in Idaho, and conducts upstream exploration and claim acquisition in North America. Provides ore evaluation, metallurgical testwork, smelting and refining, zeolite beneficiation and product qualification for industrial and defense applications. Maintains public-company SEC reporting and investor resources.
Industries
N/A
Nr. of Employees
small (1-50)
UNITED STATES ANTIMONY CORPORATION
Products
Antimony metal (ingots)
Refined antimony metal produced by smelting for use in alloys, batteries and ordnance.
Antimony oxide and antimony trisulfide
Processed antimony compounds produced by smelting and fuming processes for use in flame retardants, primers and industrial additives.
Processed clinoptilolite zeolite
High-purity natural clinoptilolite zeolite processed for adsorption, ion-exchange, agriculture and environmental remediation.
Antimony metal (ingots)
Refined antimony metal produced by smelting for use in alloys, batteries and ordnance.
Antimony oxide and antimony trisulfide
Processed antimony compounds produced by smelting and fuming processes for use in flame retardants, primers and industrial additives.
Processed clinoptilolite zeolite
High-purity natural clinoptilolite zeolite processed for adsorption, ion-exchange, agriculture and environmental remediation.
Services
Laboratory assays, bench and pilot metallurgical testwork, and Qualified Person-reviewed technical reporting to evaluate ore upgrade potential, leach behavior and product qualification.
On-site smelting, oxide production and precious-metal recovery services including rotary furnace operations, fuming/roasting, leach circuits and refinery processing.
Mining, beneficiation and supply of high-purity clinoptilolite zeolite, and performance testing for agricultural, environmental and household product applications.
Management and oversight of engineering and construction contracts for smelter/mill upgrades and capacity expansions.
Laboratory assays, bench and pilot metallurgical testwork, and Qualified Person-reviewed technical reporting to evaluate ore upgrade potential, leach behavior and product qualification.
On-site smelting, oxide production and precious-metal recovery services including rotary furnace operations, fuming/roasting, leach circuits and refinery processing.
Mining, beneficiation and supply of high-purity clinoptilolite zeolite, and performance testing for agricultural, environmental and household product applications.
Management and oversight of engineering and construction contracts for smelter/mill upgrades and capacity expansions.
Expertise Areas
- Antimony smelting and oxide production
- Zeolite beneficiation and product development
- Flotation and gravity concentration
- Hydrometallurgical precious-metals recovery
Key Technologies
- Flotation
- Gravity concentration (jigs, tables, heavy-media)
- Comminution (crushing, screening, grinding)
- Rotary furnace smelting and volatilization/fuming
News & Updates
Webcast transcript of first quarter 2024 financial and operational results, including commentary on operations, zeolite and antimony market conditions.
Press release and Form 8-K reporting third quarter and nine months ended September 30, 2024 financial results and operational updates including Bear River Zeolite runtime improvements and antimony market commentary.
Operational description of Mexican smelter and flotation/leach facilities, including installation of caustic leach circuits and historical production figures; notes on re-commissioning activity.
Company maintains a public SEC filings repository that includes periodic reports and disclosures (Form 10-K, Form 10-Q, Form 8-K), prospectus supplements and related investor filings.
Madero antimony smelter upgraded and re-commissioned following an operational shutdown, with facility modifications including leach circuits and furnace operations.
Announcement of completion of a mineral reserve technical report for the Preston, Idaho clinoptilolite deposit.
Webcast transcript of first quarter 2024 financial and operational results, including commentary on operations, zeolite and antimony market conditions.
Press release and Form 8-K reporting third quarter and nine months ended September 30, 2024 financial results and operational updates including Bear River Zeolite runtime improvements and antimony market commentary.
Operational description of Mexican smelter and flotation/leach facilities, including installation of caustic leach circuits and historical production figures; notes on re-commissioning activity.
Company maintains a public SEC filings repository that includes periodic reports and disclosures (Form 10-K, Form 10-Q, Form 8-K), prospectus supplements and related investor filings.
Madero antimony smelter upgraded and re-commissioned following an operational shutdown, with facility modifications including leach circuits and furnace operations.
Announcement of completion of a mineral reserve technical report for the Preston, Idaho clinoptilolite deposit.