Research and development of biochemical product technology; Technical service, technical development, technical consultation, technical exchange, technology transfer and technology popularization; Sales of chemical products (excluding licensed chemical products); Production of chemical products (excluding licensed chemical products). (Except for the items subject to approval according to law, business activities shall be independently carried out according to law with the business license) Licensed items: import and export of goods; Technology import and export. (Projects subject to approval according to law can only be operated after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses of relevant departments. )