Operation of hazardous chemicals. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses of relevant departments. ) General projects: Sales of specialized chemical products (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Sales of daily chemical products; Sales of electronic specialized materials; Wholesale of hardware products; Sales of metal tools; Sales of glassware; Sales of daily necessities; Wholesale of cosmetics; Sales of special labor protection equipment; Disinfectant sales (excluding hazardous chemicals); Sales of coatings (excluding hazardous chemicals); Ink sales (excluding hazardous chemicals); Sales of engineering plastics and synthetic resins; Sales of synthetic materials; Import and export of goods; Technology import and export