Sumitomo Chemical is a leading Japanese manufacturer of APIs and Advanced Intermediates for supply to the global pharmaceutical industry. Based upon our own state-of-the-art technology platform, highly sophisticated quality assurance system, and our experience in regulatory services, our mission is to provide the best integrated service to customers, as a supplier of pharmaceutical chemicals.For APIs and Advanced Intermediates, Sumitomo Chemical has three main production sites in Japan. In these sites, our manufacturing facilities are constructed and operated in accordance with cGMP and regularly inspected by FDA. With our