General projects: Technical service, technology development, technology consultation, technology exchange, technology transfer, technology popularization; Supply chain management services; Internet sales (except sales of licensed goods); Metal material sales; Sales of metal products; Sales of non-metallic minerals and products; Information system integration services; Data processing services; Industrial design services; Corporate image planning; Professional design services; Socio-economic advisory services; Digital cultural creative content application services; Enterprise management consulting; Mechanical and electrical equipment sales; Wholesale of electronic components; Sales of power electronic components; Sales of electronic products; Building materials sales; Timber sales; Cement products sales; Sales of coal and its products; Sales of labor protection articles; Sales of disinfectants (without dangerous chemicals); General goods storage services (excluding hazardous chemicals and other items subject to approval); Domestic freight forwarder; Import and export of goods; Technology import and export; Information consulting services (excluding licensed information consulting services); Advertising design and agency; Advertising release; Advertising production; Loading, unloading and handling; Conference and exhibition services; Housing rental; Non-residential real estate lease; Office equipment rental services; Computer and communication equipment leasing. (Except for the items subject to approval according to law, independently carry out business activities according to law with the business license) Permitted items: Category I value-added telecommunications business; The second type of value-added telecommunications services; Basic telecommunications services. (For projects subject to approval according to law, business activities can only be carried out after approval by relevant departments, and specific business projects shall be subject to approval documents or licenses of relevant departments)