The cardholder of the main card can apply for the supplementary card through the following channels: Channel 1: The main card and the supplementary card are applied at the same time. Please check the supplementary card when applying. Path 2: The main cardholder handles the supplementary card for relatives. 1. Online card processing: the main cardholder completes the application according to the website steps, prints the online application form, and sends it to our bank together with the identity documents of the supplementary cardholders after the main cardholder signs it. Click/ccproduct/fushu.aspx2. Go to our business outlets to apply for a card: the main cardholder must bring the original ID card of the supplementary cardholder, and the supplementary cardholder does not have to accompany him. Click to find our point of sale.