As early as 2003, Hunan keyuan Bio-products only sales herbal extracts within China to trading companies in Changsha and other areas of China. In 2006, when the sales branch-Shanghai Natural Bio-engineering Co., Ltd was built and granted for export license and under the leadership of Vice President Ms Deng, Products are able to export to more than 100 countries, such as the United States, Canada, Mexico, Germany, United Kingdom, Spain, Poland, Netherland, Russia, Italy, Turkey, Denmark, Lithuania, Greece, Malaysia, Singapore, Japan, Korea, Australia, New Zealand, Panama, Venezuela, Brazil, Argentina, Chile, Egypt, Saudi Arabia, UAE(United Arab Emirates), Thailand, Philippines, India, Pakistan, South Africa, etc. Our popular products manufactured in our factory include Artemisinin, Polygonum Cuspidatum (Trans-Resveratrol), Curcumin, Diosmin, Griffonia Seed Extract (5-HTP), Stevia, Progesterone, Vincamine, Huperzine A, Coenzyme Q10, Rutin, Milk Thistle extract Silymarin, hormones, steroids, etc