Bank of China Great Wall American Express series credit cards have two CVV codes: the upper right four digits of the card number on the front of the card are suitable for online consumption of American Express cards, and the three digits on the back of the card are suitable for online consumption of UnionPay cards. All-currency American Express cards have no UnionPay channels.

The above contents are for your reference. Please refer to the actual business regulations.

If you have any questions, please contact online customer service of Bank of China.

You are cordially invited to download and use China Bank Mobile Banking APP or China Bank Cross-border GO APP to handle related business.