Licensed Projects: Construction project construction( Except for nuclear power plant construction and operation、 Civil airport construction), Construction labor subcontracting, Residential interior decoration( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: Import and export of goods, Technology import and export, Sales of Class I medical devices, Sales of Class II medical devices, Domestic trade agent, Information consulting services( No licensing information consulting services), Building materials sales, Floor sales, Rubber product sales, Plastic product sales, electric wire、 Cable Operations, Sales of molding materials for casting, Sales of building decoration materials, Synthetic material sales, Lightweight building materials sales, Sales of steel bars for construction, Cement product sales, Building Block Sales, Foreign contracting projects, Sales of engineering plastics and synthetic resins, Construction machinery sales, Engineering Management Services, Engineering cost consulting business, Engineering and technical services( Planning Management、 Survey、 design、 Except supervision), Industrial Engineering Design Services, Sales of building waterproofing membrane products, Sales of metal parts for construction, Sales of architectural ceramic products, Construction machinery and equipment rental, Building cleaning services, Interior wooden door and window installation service, Landscaping project construction, Machinery and equipment sales, Hardware wholesale, Paint sales( No hazardous chemicals), Insulation material sales, Metal structure sales, Sales of sealing packing, Fastener sales, Sales of glass fiber reinforced plastic products, Bamboo products sales, Concrete structural component sales, Brick and tile sales, Sales of asbestos cement products, Lime and gypsum sales, loading and unloading, Safety technology prevention system design and construction services, Furniture installation and repair services, Mechanical parts、 Parts Sales, Anti-corrosion material sales( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)