Licensed Projects: Construction project construction, Power transmission、 powered by、 Installation of receiving power facilities、 Maintenance and testing, Construction project construction( Except for nuclear power plant construction and operation、 Civil airport construction), Construction of geological disaster control projects, Cultural relics protection project construction, Gas burner installation、 repair, Electrical installation services, Installation of civil air defense protection equipment, Residential interior decoration, Roadbed and pavement maintenance work, Building demolition work( Except blasting operations), Road freight transport( Does not contain dangerous goods), Construction labor subcontracting, Professional construction work。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business projects are subject to the approval documents or licenses of relevant departments.) General Projects: Foreign contracting projects, Landscaping project construction,Earthwork construction, Sports venue facility construction, Metal door and window construction, Construction of fishing port and fishing boat berths, Building materials sales, Sales of building decoration materials, Sales of steel bars for construction, Cement product sales, Building cleaning services, Construction machinery and equipment rental。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations)