The business scope includes general projects: Technology import and export; Goods import and export; Import and export agency; Leasing of construction machinery and equipment; Sales of construction machinery; Mechanical equipment leasing; Sales of mechanical parts and components: Earthwork construction; Landscaping construction; Installation services for ordinary mechanical equipment; Sales of building materials: Sales of new energy vehicles; Sales of automobiles; Sales of lubricants; Sales of chemical products (excluding licensed chemical products); Sales of communication equipment: Sales of electronic products: Enterprise management consulting: Conference and exhibition services: Technical services, technology development, technology consulting, technology exchange, technology transfer, technology promotion (except for licensed businesses, projects that are not prohibited or restricted by laws and regulations can be operated independently). Construction of licensed projects: Construction labor subcontracting: Urban construction waste disposal (clearance); Construction Professional Assignment: Construction Engineering Design