General projects: Research and development of new material technologies; Research and development of electronic special materials; Manufacturing of rubber products; Sales of rubber products; Manufacturing of plastic products; Sales of plastic products; Manufacturing of electronic special materials; Sales of electronic special materials; Manufacturing of new membrane materials; Sales of new membrane materials; Sales of synthetic materials; Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of special chemical products (excluding hazardous chemicals); Manufacturing of special chemical products (excluding hazardous chemicals); Internet sales (excluding goods that require a license for sale); Sales of new organic active materials; Sales agency; Goods import and export; Technology import and export. (Except for projects that must be approved in accordance with the law, business activities shall be carried out independently in accordance with the law with a business license) (For projects that must be approved in accordance with the law, business activities can only be carried out after approval by the relevant departments)