Required. To apply for ETC discounts with a CITIC Bank credit card, you need to bind a CITIC Bank credit card, because only by binding a CITIC Bank credit card can you enjoy the ETC discount. Specifically, credit card users with China CITIC Bank can enjoy ETC discounts when using the bound CITIC Bank credit card to settle ETC charges. If you do not bind a CITIC Bank credit card, you cannot enjoy this offer. Therefore, if you want to enjoy the ETC discount with CITIC Bank credit card, you need to bind the CITIC Bank credit card and ETC account first.