Business scope includes general business projects are: Lighting engineering design, installation, commissioning; Industrial software development; Urban and road lighting engineering construction (involving qualified business with qualification certificate); Contract energy management; Auto, auto accessories sales; Car leasing, used car trading; Sales of medical masks, labor protection masks and daily protective masks; Sales of class II medical devices (business records of Class II medical devices shall be obtained before operation); Melt blown cloth sales; Technical development and sales of medical personnel protective equipment (class II medical equipment) and labor protection equipment; Exhibition planning, information technology consulting services; Internal trade; Import and export of goods and technology., the permitted business items are: Road general cargo transport; Lighting appliance product design, development, manufacturing, sales; Lighting accessories, lighting equipment and accessories production, sales; Transmission and distribution and control equipment design, development, manufacturing, sales