Auction business; Online data processing and transaction processing business (operational e-commerce); Internet information services; Class II value-added telecommunications services; Road cargo transportation (excluding dangerous goods). General items: Research and development of resource recycling technology; Recycling of renewable resources (excluding production scrap metal); Sales of renewable resources; Recycling of production scrap metal; Processing of metal waste and scraps; Recycling and cascading utilization of waste power batteries from new energy vehicles (excluding hazardous waste operations); Processing of non-metal waste and scraps; Sales of engineering plastics and synthetic resins; Sales of synthetic materials; Sales of plastic products; Sales of used goods; Sales of new catalytic materials and auxiliaries; Sales of new membrane materials; Operation of wires and cables; Manufacturing of intelligent basic manufacturing equipment; Manufacturing of mobile terminal equipment; Sales of charging piles; Internet sales (excluding goods requiring sales permits); Sales of network equipment; Sales of electronic components and electromechanical component equipment; Sales of power electronic components; Sales of instruments and meters; Sales of photovoltaic equipment and components; Sales of communication equipment; Sales of mechanical equipment; Sales of batteries; Retail of hardware products; Research and development of mechanical equipment; Software development; Leasing services for office equipment; Technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; Technology promotion services; Leasing services for storage equipment; Leasing of computers and communication equipment; Labor services (excluding labor dispatch); Advertising design and agency; Advertising publication; Road cargo transportation of general goods with total mass of 4.5 tons and below (excluding network freight and dangerous goods); General cargo warehousing services (excluding items requiring permits such as hazardous chemicals); Sales of Class I medical devices; Leasing and operation of small and micro passenger vehicles; Leasing services (excluding licensed leasing services).