1. Business process of institutional customer account opening: 1. The authorized agent of the institutional customer holds the original account opening information (copy with official seal); Come to the sales department to open an account, set a password, etc. , and leave a seal and reserve an account; It is recommended to bring the company's official seal, legal representative seal (if the power of attorney uses legal representative seal) and financial seal, so that it can be completed at one time; If the legal representative handles it in person, the power of attorney of the legal representative may be waived. 2. After signing the institutional third-party depository agreement, go to the bank where the enterprise opens an account for confirmation. 3. Note: Only one kind can be used in all business materials, that is, the seal of the legal representative or the signature of the legal representative himself. Two. Materials and procedures required for the institution to handle the third-party depository of securities companies: the certificate of legal representative, the power of attorney of legal person (authorization content: signing a third-party depository agreement with a securities limited liability company or a branch of a bank, and the legal representative's signature or seal (consistent with the account opening information)), the original and photocopy of the ID card of the agent, the original shareholder code card and the third-party depository agreement are all stamped with the official seal and handled at the counter of the securities business department of our bank. Note: bank and securities documents must be consistent. At present, most of the three-party depository banks opened by brokers are China Bank, China Industrial and Commercial Bank, China Construction Bank, Industrial Bank, Guangfa Bank, China Merchants Bank, Bank of Communications and Agricultural Bank. More questions about institutional securities account opening can be asked here.