To put it simply, there are four aspects: 1 comprehensive foreign trade services: one partner provides customers with personal services such as foreign trade consultation, Datong order operation, foreign trade financing, foreign trade documentary, logistics arrangement, tax agency and other basic services, including financial services such as customs clearance, tax refund and foreign exchange. At present, there are super letters of credit, circulating loans of Datong, settlement treasures and policy loans under this business line, which can cover the financing needs of all aspects of foreign trade.