Lonwin Chemical Group

Lonwin Chemical Group is a specialized manufacturer and supplier of fine chemicals, pharmaceutical intermediates, and active pharmaceutical ingredients (APIs). Headquartered in China, the company provides custom synthesis and contract development and manufacturing (CDMO) services to the global pharmaceutical and biotechnology industries. Lonwin's core expertise lies in small molecule chemistry, particularly in the production of heterocyclic compounds, boronic acids, and chiral building blocks. They support drug development projects from laboratory-scale research through to commercial-scale production, maintaining rigorous quality standards to meet international regulatory requirements. The company serves as a critical link in the pharmaceutical supply chain by providing high-quality chemical building blocks for drug discovery.