One-code-only account is the main account set up by China Clearing for each investor to record the investor's identity information and securities assets. The securities account is a sub-account used by investors for investment transactions, and the relationship between the one-code account and the sub-account is established. Sub-accounts include A-share accounts, B-share accounts, share transfer system accounts, closed-end fund accounts and other securities accounts established by China Clearing according to business needs. The same investor can only apply for opening a one-code account. Unify the account business rules and processing flow of one-code account settlement, eliminate the influence of account business differences in Shanghai and Shenzhen markets, and improve the experience and efficiency of handling accounts. Through the establishment of a unified account platform, it is responsible for the unified operation of account business, and undertakes the functions of the original account opening system of China settlement Shanghai and Shenzhen branches.

First, the advantages of China's settlement of one-code accounts

1. Convenient inquiry management: optimize the management of investor account information and maintain a set of account information of investors in the whole market. Investors can inquire and change account information in any securities company with entrusted trading relationship.

2. Convenient handling of business: Cancel the paper account card, so that investors do not need to show paper account cards when handling business in the future.

3. Simple account opening and account closing: T+ 1 can be used when the account is newly opened in Shanghai and Shenzhen markets, and T+0 will take effect, and there is no need to close the securities account twice. Unify the China settlement counter account business, and the counters of China settlement Shanghai and Shenzhen branches can accept the investor account business of special legal person institutions in the two cities at the same time, and will not accept it in different places.

4. One-person multi-household transaction: the restrictive provision of "one person, one household" is abolished, and multiple securities accounts are allowed to be opened when necessary to facilitate investors to trade in multiple securities companies.

5. Affordable account opening: the charging items are adjusted from the original seven to only one account opening fee, and the charging standard of account opening fee is unified and greatly reduced.

6. Wealth management major: Based on the one-code account, the investor suitability management system can be further improved, and the customer service in the securities market has changed from "account" to "person". Securities companies can provide investors with tailor-made wealth management and other comprehensive services, and provide basic support for product innovation in various businesses.