Puyang Yongan Chemical Co., Ltd (YACC)is certificated by ISO9001: 2000 Quality Management System Certification, with the self-supported rights of import and export, and specialized in producing chemical products including Pentaerythritol, Dipentaerythritol, and Tripentaer with high technology. The company is located in Puyang city which is famous as the State-level Healthy City, Garden City, and Tourist City. Yongan Chemical believes in "Only specialization brings exceeding, and only devotion brings the excellence". Since founding, we have been engaged in research and development, production and marketing of Pentaerythritol series products. We adhere to the independent res……