For help, can China Postal Savings Bank's card be swiped abroad?
As long as it is a UnionPay card, you can swipe your card at merchants with UnionPay logo overseas, and you can withdraw local currency from ATMs with UnionPay logo overseas. The exchange rate can be queried in Baidu "UnionPay Exchange Rate" according to the exchange rate announced by UnionPay on the same day. UnionPay has become more popular in Southeast Asia, especially supporting many ATMs.