The business scope includes licensed projects: Urban domestic waste management services; Construction engineering design; Construction project contracting; Urban construction waste disposal (removal) (projects that require approval by relevant authorities can only be carried out after obtaining such approval). General projects: Building cleaning services; Professional cleaning, washing, and disinfection services; Property management; Forest pest control services; Technology services, technology development, technical consultation, technology exchange, technology transfer, and technology promotion; Sales of plastic products; Sales of engineering plastics and synthetic resins; Sales of glass fiber reinforced plastic products; Sales of food-grade plastic packaging containers and tools; Recycling of renewable resources (excluding production-related scrap metal); Sales of renewable resources; Recovery of production-related scrap metal; Processing of renewable resources; Research and development of resource regeneration and utilization technologies; Processing of non-metallic waste and scraps; Consulting services for resource recycling and utilization (except for licensed businesses, operations not prohibited or restricted by laws and regulations can be conducted independently according to law).