Technology development, technical services, technology transfer of software and hardware; R&D and technical services of embedded software; property leasing; domestic trade; import and export business; exhibition planning, cultural event planning; wholesale of cosmetics; retail of cosmetics; sales of rubber products; sales of household products; manufacturing of leather products; Sales of communication equipment; sales of household appliances; retail of daily household appliances; sales of daily necessities; technical services, technology development, technical consultation, technology exchange, technology transfer, and technology promotion. R&D, design, production and sales of smart wearable devices, massage instruments, massage instrument consumables, beauty appliances, medical devices and related parts; R&D, design, production and sales of new materials; other telecommunications services.