XI’AN TIANXINGJIAN PHARMCHEM ENTERPRISES CO.,LTD ,was built 2005, it is a leading group enterprises for herb extracts with planting, development ,production and exportation, In 2012 set up SHAANXI RZ BIO- TECHNOLOGY CO., LTD., which takes about 33000 square meter which has about 5000 square meter of workshop including about 900 square meter of 100000 grade of clean room .