Manufacturing of auto parts and accessories; research and development of auto parts; remanufacturing of auto parts; machining of mechanical parts and components; retail of auto parts; wholesale of auto parts; leasing of mechanical equipment; leasing of non-residential real estate; general cargo warehousing services (excluding hazardous chemicals and other projects requiring licensing); road freight transport for trucks with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); sales of new energy vehicle electrical accessories; manufacturing of gas compression machinery; sales of gas compression machinery; import and export of goods; import and export of technology; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion.