General Projects: Technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; Sales of chemical products (excluding licensed chemicals); R&D of new material technologies (Except for projects subject to approval by law, business activities can be conducted autonomously in accordance with the business license). Licensed Projects: Import and export of goods; Import and export of technologies (Projects subject to legal approval can only be carried out after approval by relevant authorities; specific business activities shall comply with official approval documents or permits).