First of all, the TA account number is related to the fund company and has nothing to do with the bank.

Although you opened it in a bank, it was actually opened for you in a fund company.

TA account number is a fund account number, which is related to your identity document and helps fund companies identify customers. Including account name, ID number and so on.

An ID number can only have two fund accounts at most in a fund company, one is registered in the fund company's own TA system, and the other can be registered in the Deng Zhong company's TA account, which is your shareholder code card number.

But some fund companies don't have their own TA system, so you can only use the TA account of Deng Zhong companies, such as AIA Huatai.

You can open multiple trading accounts under one fund account, but direct trading accounts can also be entrusted trading accounts.

The trading account number includes information such as institutions and fund cards. It can help fund companies identify the source of funds.