General business items: import and export of goods; technology import and export; mechanical equipment research and development; communication equipment manufacturing; network equipment manufacturing; computer software, hardware and peripheral equipment manufacturing; optical communication equipment sales; smart home consumer equipment manufacturing; electrical equipment manufacturing; electrical machinery special equipment manufacturing; electrical instrument and meter manufacturing; mechanical and electrical equipment manufacturing; electrical signal equipment device manufacturing; lighting appliance manufacturing; 5G communication technology services; software development; technical services, technology development, technical consultation, technical exchange, technology transfer, technology promotion; non-residential real estate leasing; property management; road freight transport for general cargo vehicles with a total mass of 4.5 tons or less (excluding network freight and dangerous goods). Licensed business items: Type II value-added telecommunications services