Different exchanges/trading platforms may be slightly different. The mainstream practice is that investors who have not signed a bank contract, if they want to change the bank card number, please apply directly to the investment company/agent who opened the account. If an investor who has signed a bank contract wants to change the bank card number, the process is as follows:

1. After the investor transfers all the electronic trading contracts held in the trading account, all the funds in the account will be transferred to the bank account in China;

2. Investors go to the counter of the signing settlement bank or handle the cancellation of the signing relationship through online banking;

3. After the signing relationship is terminated, the investor contacts the investment company (agent) to apply for bank account change. This procedure is for reference only. Due to the different spot exchanges, the process is slightly different. Investors should follow the investment and then deal with it.

The company (agent) communicates well.