Shaanxi Pure Source Bio Tech Co.,Ltd is a modern High-Tech biological enterprise engaged in the R&D, production and sales of Chinese herbs and herbs extract. The factory is located in Xi'an, China, with very advanced stainless steel production facilities. We process over 2,000 tons of herbs annually.we rely on the abundant natural resources of the Great Qinling Mountains and medicinal plant resources from the rest of the world, with strong technical force and strict quality control system. we have independent import and export right.