Hunan Keyuan Bio-products Co., Ltd. (Keyuan) is 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 series, plant extract, Phyto-semisynthesis and biological ferment products. We are honored as High-Tech enterprise of Hunan Province in 2005.Our products are popular in Africa, Asia, North America, Latin American,West Europe and Southeast Asia.