Machinery and equipment research and development; Generator and generator set manufacturing; Generator and generator set sales; Power distribution switchgear equipment research and development; Power distribution switchgear equipment manufacturing; Power distribution switchgear equipment sales; Waste heat, waste pressure, and waste gas utilization technology research and development; Emerging energy technology research and development; Motor manufacturing; Mechanical and electrical equipment manufacturing; Electronic (gas) physical equipment and other electronic equipment manufacturing; Mechanical and electrical equipment sales; Photovoltaic equipment and component sales; Station-use hydrogen refueling and hydrogen storage facility sales; Vibration and noise reduction equipment sales; General mechanical equipment installation services; Electronic and mechanical equipment maintenance (excluding special equipment); Electrical equipment repair; Machinery and equipment leasing; Battery sales; Non-residential real estate lease; Foreign contracting projects; Goods import and export; Technology import and export; Car sales; Container manufacturing; Container sales; New energy original power equipment manufacturing; Power distribution and control equipment manufacturing; Intelligent power distribution and control equipment sales; Electric vehicle charging infrastructure operation; Charging pile sales; Centralized fast charging stations; New energy vehicle battery swap facility sales; Motor vehicle charging sales; New energy original power equipment sales. Permitted items: Road motor vehicle production; Construction engineering design; Power generation, transmission, and distribution (supply) business; Installation, repair, and testing of transmission, power supply, and power receiving facilities; Construction engineering construction.