Manufacturing of auto parts and accessories; R&D of auto parts; Wholesale of auto parts; Retail of auto parts; Manufacturing of motorcycle parts; R&D of motorcycles and parts; Wholesale of motorcycles and parts; Retail of motorcycles and parts; Import and export of goods; Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; Manufacturing of steam turbines and auxiliary machinery; Sales of steam turbines and auxiliary machinery; Manufacturing of mechanical and electrical equipment; Sales of water transportation equipment spare parts; Technology import and export.