Yonezawa Hamari Chemicals

Yonezawa Hamari Chemicals is a Japanese contract development and manufacturing organization (CDMO) specializing in the production of active pharmaceutical ingredients (APIs) and intermediates. As a key manufacturing subsidiary of Hamari Chemicals, the company operates advanced facilities in Yonezawa, Yamagata Prefecture, which are compliant with global GMP standards including US FDA and PMDA regulations. Their technical expertise spans complex small molecule synthesis, high-potency APIs (HPAPIs), and peptide manufacturing. In addition to pharmaceutical components, they produce high-quality ingredients for the food and cosmetic industries. The company provides comprehensive services from process development and scale-up to commercial-scale production for global pharmaceutical partners.