Jiurui Biology & Chemistry Co., Ltd ., is built in 2008, situated in Zhangjiajie Economic Development Zone, Hunan Province , and covers an area of 130，000 sq. meters. Chairman of the board of directors is Dr. Zhao Guofeng who is a professor of organic chemistry at the Tianjin Nankai University. Relying on scientific research strength of Tianjin Nankai University and making use of vast natural resources of Wuling Mountains, the company focuses on the extraction and processing of natural products .