Gulf Resources, Inc., through its subsidiaries, engages in the manufacture and trading of bromine and crude salt, chemical products, and natural gas in the People's Republic of China. The company operates through four segments: Bromine, Crude Salt, Chemical Products, and Natural Gas segments. It also provides bromine for use in bromine compounds, intermediates in organic synthesis, brominated flame retardants, fumigants, water purification compounds, dyes, medicines, and disinfectants. In addition, the company offers crude salt for use as a material in alkali and chlorine alkali production for use in the chemical, food and beverage, and other industries. Further, it manufactures and sells chemical products for use in oil and gas field exploration, oil and gas distribution, oil field drilling, papermaking chemical agents, and inorganic chemicals, as well as materials that are used for human and animal antibiotics. Gulf Resources, Inc. is based in Shouguang, the People's Republic of China.