We are a scientific and high-tech group which integrating with manufacturing, marketing, R&D. It is established in 2003. As one of the largest manufacturer base of Steroid Hormone intermediates in China, we owned two subsidiary companies: one is Shanghai Natural Bio-engineering Co., Ltd,the other is Shanghai Zheyuan Pharmaceutical Technology Research Cente.Keyuan is mainly specialized in producing of Steroid Hormone API, anti-malarial APIs...
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