Songwon Baifu Chemicals(Tangshan) CO., LTD is a professional company which not only researches but also produces. Our capacity is 12000MT/Y for sulphoester antioxidant, it is the biggest set in Asia now. The company is located in Tangshan Nanpu Economic Development Our main products: Sulphoester antioxidant items, such as DLTDPDSTDPDTDTPDMTDP; Phenolic antioxidant items; Phosphiteester antioxidant items; UV-absorbers items; Antioxidant blends items with the modern recombination granulation technology; Thiodipropion Acid (TDPA). Our sulphoester antioxidant items have past many test of Worlds Standardssuch as Heavy Metal tested by SGS, and so on. T