General Projects: Manufacturing of special equipment for environmental protection, Sales of special equipment for environmental protection, oven、 Furnace and electric furnace manufacturing, oven、 Furnace and electric furnace sales, Coal-fired flue gas desulfurization and denitrification equipment manufacturing, Sales of coal-fired flue gas desulfurization and denitrification equipment, Sludge treatment equipment manufacturing, Industrial Engineering Design Services, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Software Development, Software Sales, Sales of industrial automatic control systems, Technology import and export, Import and export of goods。( 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( Except for nuclear power plant construction and operation、 Civil airport construction)。( 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.)