Founded in 2003, Hunan Keyuan Bio-products Co., Ltd is a professional manufacturer of food additives, nutraceuticals, pharmaceutical raw materials and intermediates, which is a high-tech modern corporation engaged in cultivation, R & D, production, sales & marketing. Keyuan has two factories located in Hunan Shaoyang and Hunan Liuyang. Also it has two trading subsidiaries: Shanghai Natural Bio-engineering Co., Ltd. and Shanghai Chuyuan Industrial Co., Ltd. Besides, Keyuan set an office in Changsha. The main products include resveratrol, artemisinin & its derivatives, lumefantrine, rutin., curcumin, Epimedium P.E. and steroid hormone APIs . We are honored as High-Tech enterprise in 2005. Our products are popular in North America, Africa, Latin American, West Europe and Southeast Asia. And we established good cooperative relationship with m Click for details>>