About us

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
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