Wholesale of computer software, hardware, and auxiliary equipment; Retail of computer software, hardware, and auxiliary equipment; Technical services, development, consultation, exchange, transfer, and promotion; Sales of cloud computing devices; Software development; Integration of satellite technology comprehensive application systems; Sales of industrial control computers and systems; Data processing and storage support services; Information system integration services; Industrial Internet Data Services; Internet security services; Animation game development; Sales of smart home consumer devices; Sales of optical communication equipment; Network equipment sales; Integrated circuit sales; 5G communication technology services; Cloud computing equipment technology services; Sales of communication equipment; Sales of broadcasting, film and television equipment; Sales of IoT devices; Research and development of Internet of Things technology; Internet of Things technology services; Sales of intelligent unmanned aerial vehicles;