GB CHEMWIN, a professional supplier of chemicals, pharmaceuticals, and chemistry service, is headquartered in Hangzhou, China, neighbouring the hub of chemical and pharmaceutical industry. We are a young company, as a subsidiary of Zhejiang Guobang Pharmaceutical Co., Ltd. Possessing our own labs, Quality assurance system, and managed by senior executives with rich experience in quality control, regulatory affairs and marketing for the highly-competitive pharma-chem business.

Zhejiang Guobang Pharmaceutical Co., Ltd. is a major manufacturer of synthesis raw materials and intermediates, which has 5 factories and their own R&D center. Relying on the Zhejiang Guobang's technical and financial advantages, CHEMWIN will be a trading company based on manufacturing and R&D, that means we can do not only traditional trading, but also Strategic Sourcing, Contract Manufacturing, Technology Transfer and new product and process development as well.

GB CHEMWIN focused in developing a total solution to the chemical and pharmaceutical industries, helping its global customers and partners on strategic sourcing, technology cooperation, and R&D. "Thrive with our customers" To build on the value, we are growing together with our customers and partners all over the world.