Tianyi is a specialized researcher, developer, manufacturer and trader of bromine-grouping fire retardants, pharmaceutical intermediate, pesticide intermediate, surfactant and oil field chemicals; we are very skilled in the development of bromine-grouping fine chemicals. At present, we can annually produce 30,000 tons of bromine-grouping chemicals, including Tetrabromobisphenol A (TBBA), Decabromodiphenyl Ethane(DBDPE), Decabromodiphenyl Oxide(DBDPO), bromopropane, tribromophenol, Brominated Polystyrene, benzyl bromide, bromobenzene, Manganese dibromide, hydrobromic acid, and, so on