General Projects: Engineering and technical research and experimental development, Environmental consulting services, Energy recovery system development, Research and development of unconventional water source utilization technology, Mechanical equipment research and development, Water environment pollution prevention and control services, Solid waste management, Water pollution control, Environmental protection monitoring, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Professional design services, Industrial Engineering Design Services, General equipment manufacturing( Excluding special equipment manufacturing),Manufacturing of water pollutant monitoring and detection instruments, Manufacturing of special equipment for environmental protection, General equipment repair, Electrical equipment repair, Sales of water pollutant monitoring and detection instruments, Sales of underwater systems and operating equipment, General mechanical equipment installation services, Domestic waste treatment equipment manufacturing, Sales of domestic waste treatment equipment, oven、 Furnace and electric furnace sales,Specialty chemical product manufacturing( No hazardous chemicals), Specialty chemical product sales( No hazardous chemicals), Coal-fired flue gas desulfurization and denitrification equipment manufacturing, Sales of coal-fired flue gas desulfurization and denitrification equipment, Pump and vacuum equipment manufacturing, Pump and vacuum equipment sales。( 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, Urban domestic waste commercial services。( 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.)