By virtue of specialized process study and high-level Quality Management System, the company focuses on the development of highly active APIs of low-dose and with high technology barriers. So far the company has developed nearly 20 products, for instance, the series of calciferol API products, its indication is mainly for the treatment of osteoporosis, thyroid dysfunction, psoriasis and other diseases, which enables us to become a well-known brand supplier of calciferol products both at home and abroad. In addition some other highly active APIs such as anti-tumor JAK inhibitor APIs and those for the treatment of rheumatoid arthritis, as well as the prostaglandin APIs for the treatment of eye disease and anti-cardiovascular disease are manufactured stably in our company for a quite long period of time.