Hangzhou Huadong Medicine Group Investment Co., Ltd. is the appointed production enterprise for Chinese patent medicine and plant extract in Zhejiang province. The company has more than 30 traditional Chinese medicine products in the form of tablet, particle pharmaceutical and oral liquid etc.. As one of the largest production bases for plant extract in Zhejiang province, it mainly produces dozens of crude extracts and prepared monomers including pacilitaxel, indirubin and polyose etc.. Zhejiang Risheng Kangrun Biological Technology Co.,Ltd., whose holding company is Hangzhou Huadong Medicine Group Kangrun Pharmaceutical Co.,Ltd., specializes in producing pacilitaxel and various kinds of natural plant drugs. It can produce 50kg natural pacilitaxel per year. It has legal materials-importing certificate and the approval certificate for export. It is the largest legal pacilitaxel manufacturing production in China.