The secondary card is relative to the primary card. Every cardholder who opens a credit card can apply for a supplementary card for other natural persons with full civil capacity or with limited civil capacity who are over 13 years old (but it should be noted that the applicant for a supplementary card under 18 years old must obtain the consent of his legal representative).

As for the function of the secondary card:

1. Handling supplementary cards can bring a lot of convenience to daily card swiping applications.

2. The main card issues supplementary cards at the same time, which is convenient for users of supplementary cards to use, and the amount can be controlled by the main card independently.

3. It is a good choice for family wealth management products.