Sales of household items; Sales of solar thermal power generation products; Solar power generation technology services; Conference and exhibition services; Trade agency; Sales of smart home consumer devices; Software sales; Software development; Development of artificial intelligence application software; Intelligent control system integration; Sales of photovoltaic equipment and components; Rental of photovoltaic power generation equipment; Sales of electronic specialized materials; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Domestic trade agency; Sales agent; Consignment service; Market management services for trade fairs; Socio economic consulting services; Power generation technology services; Entrepreneurial space services; Manufacturing of household goods; Sales of plastic products; Sales of bamboo products; Information system integration services.