Manufacturing and sales of radar and supporting equipment, communication equipment, IoT equipment, broadcasting and television equipment, wires, cables, optical cables, electrical equipment, optoelectronic devices and semiconductor lighting hardware and software; design, manufacturing, installation, and sales of intelligent building systems, security systems, fire protection systems, urban lighting systems, training equipment, training simulation equipment, communication engineering, information system integration services and related equipment; software development; planning, design, consulting of smart cities, as well as construction, operation, and maintenance of related intelligent system projects; satellite navigation systems and applications; technology research and development and technical services for new materials; processing of general machinery and parts; research and development, manufacturing, and services of drones; testing, software evaluation, and metrology calibration services; repair and maintenance services for equipment and instruments; research and development, manufacturing, and sales of batteries; property management; export of self-produced electromechanical products; import of approved required raw materials, auxiliary materials, equipment, instruments, and parts; contracting of overseas electronic industry projects and domestic international bidding projects; automobile repair; sales of automobiles and parts; vehicle modification and integration.