Postal Savings Green Cartoon Card can apply for a sub-card, which is to use the funds in the current main account of Green Cartoon Card within the authorized limit of Green Cartoon Card. Green cartoon card can apply for five sub-cards.

green cartoon card application for supplementary card can be handled at the postal savings network outlets in the same county (city). Customers must apply for a secondary card with their own real-name certificate, green cartoon card and the real-name certificate of the secondary card user, and fill out the application form according to the regulations. No agent is allowed.