Recycling of renewable resources (except productive scrap metal), sales of renewable resources, processing of renewable resources, processing of metal scraps and chips, processing of non-metallic scraps and chips, recycling of productive scrap metal, solid waste management, car towing, rescue, and wrecker services, second-hand car trading market operations, motor vehicle repair and maintenance, mechanical parts and parts processing, machinery Mechanical parts and spare parts sales, auto parts and accessories manufacturing, auto parts remanufacturing, auto parts retail, auto parts wholesale, motorcycle parts manufacturing, motorcycle and spare parts retail, motorcycle and spare parts wholesale, electronics, mechanical equipment maintenance (excluding special equipment), mechanical equipment leasing, metal material sales, metal tool manufacturing, general machinery Equipment installation services, rural domestic waste operating services, import and export of goods, technology import and export, sales of non-metallic minerals and products, sales of metal ores, manufacturing of metal chains and other metal products, sales of gold and silver products, sales of building materials, general cargo warehousing services (excluding items requiring license approval such as hazardous chemicals), technical consultation on resource recycling services, resources Recycling technology research and development, non-residential real estate leasing, loading and unloading, conference and exhibition services, environmental protection consulting services, business management consulting, information technology consulting services, information system operation and maintenance services, software development, technical services, technology development, technical consulting, technology exchange, technology transfer, technology promotion, sales of special equipment for environmental protection, sales of instruments and meters. Licensed projects: scrapped motor vehicle dismantling, scrapped motor vehicle recycling.