Manufacturing of auto parts and accessories (excluding engine manufacturing); technical research, development, and engineering for vehicles; technology import and export; wholesale of auto parts; manufacturing of marine supporting equipment; mold manufacturing; manufacturing of specialized equipment for automobile production; retail of auto parts; retail of automobiles; sales of automobiles; import and export of goods (excluding goods under special state control); sales of specialized equipment; sales of general mechanical equipment; property leasing; property management; conference and exhibition services; enterprise management services (excluding licensed items); enterprise management consulting services; investment consulting services; enterprise investment with own funds; science and technology information consulting services; science and technology intermediary services; complete automobile manufacturing.