Guizhou Redstar Development Co., Ltd. was restructured and established in 1999, with its listed company headquarters located at Dingqi Street, Zhenning County, Anshun City, Guizhou Province. It was listed on the Shanghai Stock Exchange in March 2001. The company's main business involves the research, development, production, and sales of barium salts, strontium salts, and manganese-based products. The parent company primarily engages in the production and sales of inorganic chemical products, fine chemical products, and new environmentally friendly building wall materials (hazardous chemicals are limited to barium nitrate, barium chloride, sulfur, thiourea, and sodium sulfide). Barium salts and strontium salts are basic inorganic chemical materials, while manganese-based materials are electronic chemicals. The three main companies (Guizhou Redstar Development Co., Ltd., its subsidiary Chongqing Dazu Hongdie Strontium Industry Co., Ltd., and Guizhou Redstar Development Dalong Manganese Industry Co., Ltd.) are all high-tech enterprises. Barium salt products mainly include various specialized types of barium carbonate, multiple varieties of barium sulfate, high-purity barium carbonate, and high-purity barium chloride. Strontium salt products mainly include strontium carbonate, strontium nitrate, strontium chloride, strontium hydroxide, and high-purity strontium carbonate. Manganese-based products mainly include EMD for primary batteries and lithium batteries, as well as high-purity manganese sulfate. Additionally, the company is also involved in the production and sales of by-products such as sulfur, thiourea, sodium sulfide, and environmentally friendly bricks made from barium slag, as well as liquid logistics terminals and the natural pigment industry.