Engaged in technical research and development, technical consulting, wholesale, commission agency (excluding auctions), import and export and related supporting services of battery chargers and related parts and accessories (not involving state-owned trade management commodities, involving quota, license management and other special regulations management Products, apply in accordance with relevant national regulations); Software technical services; Circuit design and testing services; Information system technical services. (The above does not involve special management measures for foreign investment access). The permitted business items are: