The main business scope of our company is to develop, produce, and sell heparin APIs and heparin formulations. Heparin crude products are important raw materials for our company's production. In order to implement the company's strategy for collectivization development, Hebei Changshan Hep Crude Biotechnology Co., Ltd. takes special measures in the production of heparin crude products. The establishment and operation of its subsidiaries will extend the company's industrial chain, ensure the stability of the supply of the raw materials of our heparin products, lower production costs, and add new profit growth points for our company's long-term development.