Recycling of renewable resources (excluding solid waste, hazardous waste, end-of-life vehicles and other projects that need to be approved by relevant departments); Wholesale and retail: cultural goods, mechanical equipment, rubber products, paper products, chemical fiber raw materials, household appliances, hardware products, metal materials (except precious and rare metals), daily necessities; Import and export of goods (except those prohibited by laws and administrative regulations); Installation of industrial machinery and equipment; House demolition; Construction labor subcontracting; Greening maintenance service and parking lot service; Installation and maintenance: bus shelter and electronic station board; estate management; Advertising design, production and release; Automobile sales and maintenance. (for projects subject to approval according to law, business activities can be carried out only after approval by relevant departments)