United States Antimony Corporation engages in the production and sale of antimony, silver, gold, and zeolite products in the United States. The company operates through two divisions, Antimony and Zeolite. The Antimony division produces antimony oxide that is primarily used in conjunction with a halogen to form a synergistic flame retardant system for plastics, rubber, fiberglass, textile goods, paints, coatings, and paper. Its antimony oxide is also used as a color fastener in paints; as a catalyst for the production of polyester resins for fibers and films; as a catalyst for the production of polyethelene pterathalate in plastic bottles; as a phosphorescent agent in fluorescent light bulbs; and as an opacifier for porcelains. This division also offers sodium antimonite for use as a fining agent for glass in cathode ray tubes and as a flame retardant; antimony metal for use in bearings, storage batteries, and ordnance; and precious metals. The Zeolite division provides zeolite products for various applications, including soil amendment and fertilization, water filtration, sewage treatment, nuclear waste and other environmental cleanup, odor control, gas separation, and animal nutrition. Its zeolite products also have applications in catalysts, petroleum refining, concrete, solar energy and heat exchange, desiccants, pellet binding, horse and kitty litter, and floor cleaners, as well as acts as carriers for insecticides, pesticides, and herbicides. United States Antimony Corporation markets its antimony products under the Montana Brand Antimony Oxide name. The company was founded in 1968 and is based in Thompson Falls, Montana.