Sales of mobile communication equipment; Manufacturing of mobile communication equipment; Manufacturing of mobile terminal devices; Manufacturing of satellite mobile communication terminals; Sales of satellite mobile communication terminals; Information technology consulting services; 5G communication technology services; Software development; Information system integration services; Integration of satellite navigation multi-mode enhanced application service system; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Domestic trade agency; Engineering and technical research and experimental development; Manufacturing of communication equipment; Manufacturing of radar and supporting equipment; Integrated circuit sales; Integrated circuit manufacturing; Retail of computer software, hardware, and auxiliary equipment; Network and information security software development. (Except for projects that require approval according to law, business activities shall be conducted independently based on the business license in accordance with the law) ^ Import and export of goods. (For projects that require approval according to law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or permits issued by relevant departments. )