General Projects: Environmental protection monitoring, Environmental consulting services, Landscaping project construction, Sports venue facility construction, Foreign contracting projects, Interior wooden door and window installation service, Furniture installation and repair services, Home appliance installation services, General mechanical equipment installation services,Earthwork construction, Metal door and window construction, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Building materials sales, Sales of building waterproofing membrane products, Special machinery manufacturing for building materials production, Lightweight building material manufacturing, Information technology consulting services, Sales of ecological environment monitoring and testing instruments, Sales of special instruments for environmental monitoring, Manufacturing of special equipment for environmental protection, Manufacturing of special instruments for environmental monitoring, Manufacturing of ecological environment monitoring and testing instruments, Special instrument manufacturing, Sales of special equipment for environmental protection, Chemical product production( Does not contain permitted chemical products),Chemical product sales( Does not contain permitted chemical products), Total mass4.5 Road freight transport by ordinary freight vehicles of 2,000 tons or less( Except online freight and dangerous goods), Advertising Design、 acting, Technology import and export, Import and export of goods, Import and export agent, Offshore trading operations, Food import and export。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations) Licensed Projects: Construction project construction, Construction of geological disaster control projects, Cultural relics protection project construction, Power transmission、 powered by、 Installation of receiving power facilities、 Maintenance and testing, Electrical installation services, Residential interior decoration, Professional construction work, Construction labor subcontracting, Building demolition work( Except blasting operations), Gas burner installation、 repair。( 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.)