Manufacturing of radio and television equipment (excluding radio and television transmission equipment); sales of radio and television transmission equipment; manufacturing of film and television recording and playback equipment; manufacturing of special electronic materials; sales of special electronic materials; research and development of special electronic materials; manufacturing of computer software, hardware and peripheral equipment; sales of network equipment; manufacturing of network equipment; manufacturing of communication equipment; manufacturing of electronic components; wholesale of electronic components; information system integration services; artificial intelligence industry applications System integration services; security system monitoring services; digital video surveillance system sales; digital video surveillance system manufacturing; security equipment manufacturing; security equipment sales; general equipment repair; general equipment manufacturing (excluding special equipment manufacturing); power electronic component manufacturing; communication equipment sales; power electronic component sales; battery manufacturing; battery sales; battery spare parts production; battery spare parts sales; smart home consumer equipment equipment manufacturing; sales of smart home consumer equipment; manufacturing of electronic components and electromechanical component equipment; sales of electronic components and electromechanical component equipment; retail of electronic components; sales of electronic products; manufacturing of audio equipment; sales of audio equipment; manufacturing of display devices; sales of display devices; research and development of distribution switch control equipment; manufacturing of distribution switch control equipment; sales of distribution switch control equipment; manufacturing of household appliances; research and development of household appliances; home appliances Sales of electrical appliances; manufacturing of mechanical and electrical equipment; sales of mechanical and electrical equipment; safety technology prevention system design and construction services; information system operation and maintenance services; engineering and technology research and experimental development; software development; import and export of goods; technology import and export; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; engaging in investment activities with own funds; asset management services for investment with own funds. Licensed projects: radio and television transmission equipment manufacturing; basic telecommunications business; Internet information services; building intelligent system design.