Licensed Projects: Various engineering construction activities( 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: Recycled resource processing, Recycling of renewable resources( Except for productive scrap metal), Recycled resource sales, Productive scrap metal recycling, Non-ferrous metal rolling processing, Non-ferrous metal alloy manufacturing, Non-ferrous metal alloy sales, Sales of high-performance non-ferrous metals and alloy materials, Metal material sales, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Domestic trade agent, Solid waste management, Sales of generators and generator sets, Sales of metallurgical equipment, Municipal facilities management, Machinery and equipment sales, Auto parts wholesale,Chemical product sales( Does not contain permitted chemical products), Specialty chemical product sales( No hazardous chemicals), Bio-based material sales, Synthetic material sales, Fertilizer sales, Fertilizer sales( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)