Yes.
CCB has many credit cards, such as UnionPay credit cards, or credit cards with VISA, MASTERCARD, and JCB logos. These types of credit cards can be used in Hong Kong and Macao.
When swiping a card in Hong Kong and Macao, if you use the UnionPay network, the amount swiped will be automatically converted into RMB and credited. If you use the international organization network, the credit currency will be US dollars (European travel cards are euros), which you need when repaying. Repay U.S. dollars (Euros) or use RMB to purchase foreign exchange for repayment. If it is a credit card with automatic foreign exchange purchase function, no matter which network the card is swiped through, it will be automatically converted into RMB and credited into the account.