Specific steps: 1 First, confirm the binding bank to change the stock account. The general operation is similar. Here, the credit guarantee management of China Construction Bank is taken as an example to demonstrate. PS: You need to open online banking first. Enter China Construction Bank, log in to its online banking system, and find "Investment and Financial Management" in the sub-column. 3 After finding "Investment and Financial Management", click to bring up the submenu, and then select "New Deposit Management Contract" and "Change Contract" in turn. 4 In the new window, select the bank account that was originally signed and bound to the stock account, and then click Next. 5 The next steps are relatively simple, just follow the prompts, namely "Check account information", "Select change information" (that is, select a newly bound account) and "Confirm securities information". After completing the above steps, you can return to the securities account to confirm whether the change is successful.

Zhongtai Securities (Qilu Securities) is a first-class large-scale comprehensive securities firm in China, with full business licenses and business qualifications such as brokerage business, securities underwriting, asset management, wealth management, direct investment, derivatives, futures, funds, financial consultants, overseas business of Hong Kong stocks and US stocks, and research and investment consulting.