Hunan Keyuan is a professional manufacturer of nutraceuticals, plant extracts, pharmaceutical raw materials & intermediate and a high-tech modern large-scale corporation which is engaged in cultivation, R & D, production, sales & marketing. It was estabilished in 2003. We owned three subsidiaries: prodcution hase Hunan Keyuan Bio-products CO., Ltd, R&D base Shanghai Zheyuan Pharmaceutical Technology Research Insititute and Shanghai Chuyuan Industrial Co., Ltd. Our factory located at the foot of the beautiful Nanshan Pasture, Hunan Province, China, which assure that we can provide you with pure natural products and guarantee for your healthy life. We are certified by ISO9001 & ISO14001. The whole process of all products strictly confrom to GMP standard. Adhering to the principle of quality being the top priority, relying on technological progress & innovation, a flexible operational management and efficient service, we will keep on devoting on devoting ourselves to providing human beings effective & green healthy products!