General projects: landscaping project construction; machinery and equipment rental; municipal facilities management; land improvement services; project management services; residential water and electricity installation and maintenance services; earthwork construction; house demolition services; anti-corrosion material sales; construction machinery sales; construction machinery manufacturing; engineering and technical research and experimental development; digital video surveillance system sales; building materials sales; furniture installation and maintenance services; natural ecosystem protection and management; cement product sales; cement product manufacturing; sports venues and facilities construction; construction machinery and equipment rental; building decoration material sales; solar power generation technology services; general machinery and equipment installation services; insulation material sales; property management; Foreign contracting projects; security system monitoring services; real estate consulting; metal door and window engineering construction; non-ferrous metal casting; commonly used non-ferrous metal smelting; non-ferrous metal alloy manufacturing; non-ferrous metal rolling processing; non-ferrous metal alloy sales; grain procurement; grain sales; edible agricultural product retail; goods import and export; metal ore sales; high-performance non-ferrous metal and alloy material sales; pigment sales; non-metallic mineral and product sales; petroleum product sales (excluding hazardous chemicals); graphite and carbon product sales; high-quality special steel material sales; chemical product sales (excluding licensed chemical products); chemical product production (excluding licensed chemical products); biochemical product technology research and development; metal material sales. (Except for projects that must be approved according to law, business activities are carried out independently in accordance with the law with a business license) Licensed projects: construction project design; construction project construction; construction labor subcontracting; professional construction operations. (For projects that must be approved according to law, business activities can only be carried out after approval by relevant departments. The specific business projects are subject to the approval documents or licenses of relevant departments)