Application conditions:
1. age requirements: the applicant for the main card must be at least 18 years old and not more than 70 years old; To apply for a supplementary card, you must be at least 13 years old. If the supplementary card applicant is under the age of 18, the legal guardian must sign the application form for approval.
2. Job requirements: have a stable work unit, income and fixed residence;
3. Credit requirements: no bad credit record.
Master card applicants can also apply for supplementary cards for spouses, children, parents and relatives, and each master card can apply for up to three supplementary cards.