Of changsha city rui biological technology co., LTD., in 1997 entered the plant extraction industry, was founded in 2005, with a history of several ten years, the company is located in the rising of the central city - changsha, China to build scientific and technological innovation as the core of enterprise competitiveness, improve the innovation ability of enterprises, at the same time, adhere to the independent study and cooperation study, combining with several universities and research institutions cooperation, attracting domestic and international first-class professional talents to join in cooperation, with scientific and technological innovation as the fundamental enterprise development pillar we always stand at the forefront of plant extracts industry development, for the general customers to provide comprehensive, professional and brand of service, for the general consumer to provide safe and reliable,