Licensed Projects: Various engineering construction activities, Dangerous chemical operations( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: Resource recycling technology research and development, Manufacturing of special equipment for environmental protection, Sales of special equipment for environmental protection, Special equipment repair, Wholesale of kitchenware, sanitary ware and daily necessities, Hardware product manufacturing, Hardware wholesale, Hardware product retail, Metal tool sales, Metal tool manufacturing, Manufacturing of special equipment for daily necessities production, Petroleum products manufacturing( No hazardous chemicals), Petroleum product sales( No hazardous chemicals), Lubricant processing、 manufacture( No hazardous chemicals), Lubricant sales, Specialty chemical product sales( No hazardous chemicals),Specialty chemical product manufacturing( No hazardous chemicals), Sales of daily chemical products, Daily chemical product manufacturing, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Biochemical product technology research and development, Solid waste management, Dust removal technology equipment manufacturing, Non-ferrous metal alloy sales, Sales of high-performance non-ferrous metals and alloy materials, Metal scrap and chip processing, Battery Sales, Recycling and cascade utilization of waste power batteries for new energy vehicles( No hazardous waste management)( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)