Network and information security software development; Network technology services; Computer system services; Wholesale of computer hardware and software and auxiliary equipment; Technical services, technology development, technical consulting, technical exchanges, technology transfer, and technology promotion; Sales of communication equipment; Sales of network equipment; Advertising design and agency; Enterprise management consulting; Information consulting services (excluding licensed information consulting services); Conference and exhibition services; Domestic trade agency; Network culture management; Online data processing and transaction processing business (business e-commerce); Import and export of goods under state-owned trade management; Import and export of technology; Import and export of goods; Internet information services; Basic telecommunications services; First-class value-added telecommunications services; Second-class value-added telecommunications services