Hunan Yuantong Pharmaceutical Co., Ltd. is the sister company of Jianshi Yuantong Bioengineering Co., Ltd., located in Liuyang biomedical industry base and covering 30 acres. It has been specialized in researching and manufacturing flavonoids hesperidin & diosmin serials, rutin & troxerutin serials, natural active ingredients, natural healthcare products and formulations. It is one of the most professional and standardization manufacture base for flavonoids in China.

Hunan Yuantong Pharmaceutical Co., Ltd. owns two GMP manufacture sites, covering 1000m2 clean zone with class 100,000 grade. Most of the products are available with DMF registration, even more, our main product diosmin which has the annual capacity of 600mt, have already get the CEP certificate, and are planning to apply EDQM site inspection.