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
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
Metallurgical testing and ore evaluation services
Laboratory assays, bench and pilot metallurgical testwork, and Qualified Person-reviewed technical reporting to evaluate ore upgrade potential, leach behavior and product qualification.
Processing, smelting and precious-metal refining services
On-site smelting, oxide production and precious-metal recovery services including rotary furnace operations, fuming/roasting, leach circuits and refinery processing.
Zeolite beneficiation and product supply
Mining, beneficiation and supply of high-purity clinoptilolite zeolite, and performance testing for agricultural, environmental and household product applications.
Contract engineering and project management for processing expansions
Management and oversight of engineering and construction contracts for smelter/mill upgrades and capacity expansions.
Metallurgical testing and ore evaluation services
Laboratory assays, bench and pilot metallurgical testwork, and Qualified Person-reviewed technical reporting to evaluate ore upgrade potential, leach behavior and product qualification.
Processing, smelting and precious-metal refining services
On-site smelting, oxide production and precious-metal recovery services including rotary furnace operations, fuming/roasting, leach circuits and refinery processing.
Zeolite beneficiation and product supply
Mining, beneficiation and supply of high-purity clinoptilolite zeolite, and performance testing for agricultural, environmental and household product applications.
Contract engineering and project management for processing expansions
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