Operations prohibited by laws, regulations, and State Council decisions shall not be conducted; operations requiring permits (approvals) as stipulated by laws, regulations, and State Council decisions shall be conducted only after approval from the审批 authority and with the relevant permit (approval) documents; operations not requiring permits (approvals) as stipulated by laws, regulations, and State Council decisions shall be independently chosen and operated by market entities. (General items: Manufacture of lime and gypsum; Sales of lime and gypsum; Sales of building decoration materials; Sales of building materials; Manufacture of building waterproofing membrane products; Sales of building waterproofing membrane products; Manufacture of lightweight building materials; Sales of lightweight building materials; Sales of thermal insulation materials; Sales of ecological environment materials; Manufacture of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Production of chemical products (excluding licensed chemical products); Sales of chemical products (excluding licensed chemical products); Manufacture of coatings (excluding hazardous chemicals); Sales of coatings (excluding hazardous chemicals); Manufacture of cement products; Sales of cement products; Research and development of new material technologies; Sales of plastic products; Internet sales (excluding goods requiring sales permits); Road freight transport of goods with a total mass of 4.5 tons or less (excluding network freight and dangerous goods); Loading, unloading, and handling; Domestic cargo transport agency; Sales of anti-corrosion materials; Retail of hardware products; Sales of non-metallic minerals and products. Licensed items: Road freight transport (excluding dangerous goods).)