Research and development, manufacturing, sales, and after-sales service of modified vehicles and shelters; Sales of automobiles and automotive parts; Technical consulting and technology transfer for vehicle modification; Sales and after-sales service of electronic products, automotive electrical appliances, electromechanical equipment, communication equipment, instrumentation, and automatic control equipment; Research, production, and service of lithium batteries; Research, production, and service of battery management systems; Research, production, and service of vehicle starting battery charging and maintenance equipment; Engaging in import and export business; Enterprise management consulting.