Automotive parts and accessories manufacturing; Railway locomotive and rolling stock parts manufacturing; Container manufacturing; Motor and its control system research and development; Computer hardware, software, and peripheral equipment manufacturing; Ferrous metal casting; Mechanical parts and components processing; Technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; Mechanical parts and components sales; Engineering management services; General mechanical equipment installation services; Enterprise management consulting; Import and export of goods; Automobile sales; Renewable resource sales.