Design, research and development, production, processing and sales: Mobile communication system mobile phones, mobile multimedia devices, tablet computers, automotive electronics, POS machines, mobile phone accessories and motherboards, wireless network equipment, new electronic components and accessories, short-range wireless communication products, Electronic products, information and communication products, computers and accessories products, satellite navigation and positioning equipment, network storage devices, smart Internet of Things devices, smart home products, smart wearable products and related accessories; Software and hardware design and development, cloud platform Construction services; Import and export of goods and technologies; House leasing; Production and sales of electronic cigarettes (excluding electronic cigarettes); Production and sales of first-class medical devices, second-class medical devices, and sanitary materials; Industrial textiles Finished product manufacturing (melt blown cloth) and sales