The annual fee-free condition of CMB American Express Centurion Black Card is that the applicant must be at least 18 years old, have American citizenship, have no criminal record and have lived in China for more than 6 months. According to relevant information, the applicant must be at least 18 years old, have American citizenship, have no criminal record, and have lived in China continuously for more than 6 months. Applicants who have lived abroad for more than 6 months continuously need a valid visa and a bachelor's degree or above.