Repay the foreign currency arrears of credit cards in the following ways:

1. Log in to personal online banking and purchase foreign exchange for repayment or one-click repayment according to the card number.

2. Log in to mobile banking and select the repayment currency. The repayment type can be purchase of foreign exchange or repayment in the same currency.

3. If you hold foreign currency cash, you can go to the counter of the outlet to handle foreign currency repayment.

In other words, there are only two ways to repay foreign currency by credit card in China, either directly using foreign currency or using RMB to buy foreign currency and exchange it for Japanese yen.

Therefore, spending Japanese yen in Japan cannot directly repay RMB in China.

Extended data:

If the amount of cash repayment on that day exceeds the equivalent of US$ 5,000 (excluding), the foreign currency repayment shall be made with my valid identity document, the luggage and articles declaration form of People's Republic of China (PRC) and China Customs or the foreign currency cash withdrawal certificate of my original bank.

If you use the available credit card to purchase foreign exchange for repayment, you will pay interest at the daily rate of 0.5 ‰ and compound interest monthly from the date of purchase.

China Construction Bank-How to Return the Credit Card Foreign Currency Debt?