Produces and sells complete machinery and equipment and their parts; sells automobiles (excluding cars), motorcycles and parts; engages in technology development, technical services, technology transfer, and technical consulting services in the field of mechanical technology; remanufacturing of automobile parts; property management; house leasing; self-operated and agent import and export of various commodities and technologies (except for commodities and technologies that are restricted by the state or prohibited from import and export); sales of self-owned houses.