General project: Research and development of resource recycling technology; Research and development of new material technology; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Recycling and cascading utilization of waste power batteries from new energy vehicles (excluding hazardous waste management); Recycling of renewable resources (excluding productive waste metals); Sales of renewable resources; Battery sales; Processing and treatment of metal waste and debris; Sales of communication equipment; Internet of Things technology services; Sales of electronic specialized materials; Sales of communication equipment; Sales agent; Sales of non-ferrous metal alloys; Sales of battery spare parts; Domestic trade agency; Sale of second-hand goods; Sales of household appliances; Sales of slides and projection equipment; Energy storage technology services; Sales of electronic components and electromechanical equipment; Retail of electronic components; Electronic product sales; Manufacturing of electronic components and electromechanical equipment; Sales of high-purity elements and compounds; Digital technology services; Research and development of Internet of Things technology; Research and development of electronic specialized materials; Research and development of emerging energy technologies; Processing of renewable resources; Promotion services for new material technology; Battery rental. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law)