Import and export of goods; Technology import and export; Import and export agency; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Research and development of electronic specialized materials; Artificial intelligence application software development; Sales of audio equipment; Sales of electronic products; Sales of artificial intelligence hardware; Intelligent robot sales; Sales of smart home consumer devices; Sales of wearable smart devices; Sales of photovoltaic equipment and components; Sales of new energy driven equipment; Sales of new energy vehicle battery swapping facilities; Sales of charging stations; Software sales; Wholesale of automotive spare parts; Wholesale of electronic components; Rental of photovoltaic power generation equipment; Home Furnishings Sales