Many credit cards have foreign currency. As long as the card has the logo of American Express, VISA or MasterCard on its face, it is a foreign currency credit card. Unlike VISA and MasterCard, American Express is more complicated, with two series and different card logos.

For example, the American Express Classic Series has the head logo of "Centurion" on the card surface. As shown below, the first one is China Merchants Bank American Express Centurion Platinum Card, and the second one is Pudong American Express Xinfu Platinum Card.

American Express blue box series, different banks and different cards have different overall designs, but all have blue box logo. Below is the blue box logo in the lower right corner of China Bank Great Wall Global Express Credit Card.