High cost performance. Domestic airports are equipped with ATMs from major banks. The handling fee for foreign currency exchange at ATM is determined according to the amount of foreign currency exchanged by customers and the exchange rate policy of the country/region where they are located. 0. 1% is more cost-effective. To exchange foreign exchange in a bank, domestic residents are required to carry their identity cards, Hong Kong, Macao and Taiwan residents to carry their passes to and from the Mainland, and overseas residents to carry their passports and other valid identity documents.