Research and development of Internet of Things technology; Value added telecommunications services; Engaged in technology development, technical services, and technology transfer in the fields of computer network technology, computer information technology, and communication technology; Development and sales of computer software and hardware, network equipment, and communication equipment (excluding satellite television broadcasting ground receiving facilities and transmitting devices); Technical development, consultation and technical services of the Internet network integrated platform; Import and export business of various commodities and technologies through self operation and agency (excluding commodities and technologies restricted or prohibited from import and export by the state); Technical development, technical consulting, and technical services; Computer room engineering testing, consulting, and services; Sales of computers, software and auxiliary equipment, and electronic products; Computer system integration; Cloud platform services; Big data services; Emerging software and services; Artificial Intelligence Public Service Platform; Artificial intelligence basic resources and technology platform. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)