Manufacture of urban rail transit equipment; manufacture of railway locomotive and rolling stock parts; manufacture of high-speed rail equipment and parts; software development; manufacture of communication equipment; repair of electrical equipment; information system integration services; network and information security software development; manufacture of internet equipment; repair of general equipment; network technology services; internet of things technology services; storage equipment leasing services; information system operation and maintenance services; data processing and storage support services; software outsourcing services; manufacture of digital video surveillance systems; computer system services; transportation equipment leasing services; integrated circuit design; office equipment leasing services. Licensed items: Repair of railway locomotives and rolling stock; manufacture of basic equipment for railway transportation.