Established in September 1992, Chenggu Zhenhua Biological Science & Technology Co.,Ltd. is a high-tech limited liability company which engages in the manufacture of the intermediate of steroid hormones drugs by taking the Dioscorea Zingiberenisi Whight(Chinese Medicine Herb) as raw material. It is located in the Chenggu County which is the hometown of Zhang Qian-- the pathfinder of the Silk Road of Han Dynasty. It owns the factory area of 110,000 square meters and floor space of 80,000 square meters and the green belt occupies 85% of the whole area with flourishing green trees and flowers. So the environment is pleasing and beautiful. We have the total assets of more than 40 million yuan, and more than 200 employees with over 60 technical and managerial personnel who have senior or medium professional titles.