Licensed project: Construction project construction; Construction project design; Basic telecommunications services; The first type of value-added telecommunications services; The second type of value-added telecommunications services. (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: Technical services, technology development, technology consulting, technology exchange, technology transfer, technology promotion; Enterprise management consulting; Information consulting services (excluding licensed information consulting services); Marketing planning; Corporate image planning; Market research (excluding foreign-related research); Internet sales (except for the sale of goods that need to be licensed); Conference and exhibition services; Home service; Electronic product sales; Sales of household appliances; Retail of hardware products; Operation of wires and cables; Sales of building materials; Sales of mechanical and electrical equipment; Sales of refrigeration and air conditioning equipment; Sales of mechanical equipment; Retail of computer software, hardware, and auxiliary equipment; Advertising production; Advertising design and agency; Advertising release. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law)