GBT Travel Services UK Limited (GBT UK) and its authorized sublicensees use the “American Express Global Business Travel” trademark under a limited license from American Express. “American Express” and the American Express logo are trademarks and the property of American Express Company or related companies (American Express). GBT UK is a subsidiary of Global Business Travel Group, Inc. (NYSE: GBTG). American Express holds a minority interest in GBTG, which operates as a separate company from American Express.