General items, research and development of emerging energy technologies, technical services, technology development, technical consulting, technical exchanges, technology transfer, technology promotion, new material science and technology research and development, resource regeneration and development, Taigang Nengfa small technology services, engineering and technology research and experimental development, new material technology promotion services, recycling of renewable resources (except for productive waste metal), processing of renewable resources, treatment of body waste, non-metallic materials and crushing processing, outsourcing of case services; Productive recycling of old metals, professional cleaning, decontamination, decontamination services, urban and rural landscape management, construction of garden greening projects, urbanization management: sales of ecological environment materials, sales and promotion of online art products, flower and green leasing and agency management, sales of gifts and flowers, fertilizer sales, crop management (limited to packaged seeds that are no longer packaged), environmental consulting services; Ordinary mechanical equipment installation services, home water and electricity installation and maintenance services: wholesale of hardware products; Sales of mechanical and electrical equipment; Sales of building materials, sales of building decoration materials: sales of office supplies; Retail of sports equipment and supplies, wholesale of sports equipment and supplies; Retail of computer software, hardware, and auxiliary equipment (except for licensed businesses, may operate independently in accordance with laws and regulations that are not prohibited or restricted)