How about Yunnan Tianyao Group?

Yunnan Tianyao Chemical Co., Ltd. belongs to Yuntianhua Group, which is an enterprise established by Yuntianhua Group to focus on the development of fine phosphorus chemical industry, specializing in the research and development, production and base construction of fine phosphorus chemical products. The product fields involved include: phosphorus flame retardant, special phosphoric acid, organic phosphorus chemical products, fine yellow phosphorus and so on. At present, the company has become one of the largest suppliers of polyphosphoric acid in the global market, and its products have been used in many high-end fine chemical fields such as petroleum catalysts, medicines, flame retardants and pigments. At the same time, ammonium polyphosphate products are gradually widely used in coatings, textile fibers and plastics industries because of its good stability.