1. You have a valid certificate (individual customer: ID; Institutional customers: ID card of handling personnel, power of attorney of legal person, certificate of unified social credit code) go to the counter to inquire about the transaction.

2. Because you don't check the password when inquiring about the signing relationship, in order to prevent the customer's signing relationship from leaking, the teller needs to confirm the customer's identity when accepting your inquiry about the signing relationship. You are required to produce valid identification documents or authorization documents, and provide the customer's bank settlement account number or futures margin account number with the same name.

3. After opening online banking, you can inquire about the signing relationship in online banking by yourself.

4. The signing information of individual and institutional customers of provincial branches can be inquired locally.

5. You apply to change the settlement account used for silver transfer transaction. The signing relationship between settlement account and deposit account should be terminated by canceling the transaction, and then the signing relationship between new settlement account and deposit account should be re-established.

The above contents are for your reference. Please refer to the actual business regulations.

If in doubt, please consult the online customer service of China Bank or download and use the mobile banking APP of China Bank to handle related business.