United States Antimony Corporation is engaged in the production and sale of antimony, silver, gold and zeolite products. The Company’s segments include United States antimony, Mexican antimony, United States zeolite and precious metals. Its antimony smelter and precious metals plant is located in the Burns Mining District of Sanders County, Montana, over 15 miles west of Thompson Falls, Montana. Antimony oxide is a fine, white powder that is used primarily 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 paint, as a catalyst for the production of polyester resins for fibers and film, as a catalyst for the production of polyethylene pthalate in plastic bottles, as a phosphorescent agent in fluorescent light bulbs, and as an opacifier for porcelain. It also sells antimony metal for use in bearings, storage batteries and ordnance.