Manufacturing of auto parts and accessories; manufacturing of hardware products; wholesale of auto parts; retail of auto parts; wholesale of hardware products; retail of hardware products; sales of electronic products; domestic trade agency; research and development of mechanical equipment; sales of automotive decorative products; retail of electronic components; wholesale of electronic components; research and development of auto parts; remanufacturing of auto parts; batteries Production of spare parts; sales of battery spare parts; processing of mechanical parts and components; R&D of motors and control systems; sales of lighting fixtures; maintenance of electric bicycles; manufacturing of motorcycle spare parts; wholesale of motorcycles and spare parts; retail of motorcycles and spare parts; R&D of motorcycles and spare parts; sales agent; import and export agent; technology import and export; import and export of goods.