The clearing company is Hong Kong Securities Clearing Company Limited; Is a wholly-owned subsidiary of the Stock Exchange of Hong Kong, which operates the central clearing and settlement system in Hong Kong. Investors' shares are centrally deposited with the Hong Kong Securities Clearing Company Limited. The shares it holds are held on behalf of customers of Hong Kong joint-stock banks.

HKEx generally refers to Hong Kong Exchanges and Clearing Limited, which was established on March 6, 2000 and is a holding company listed in Hong Kong. The Hong Kong Stock Exchange is a specialized agency that operates the Hong Kong stock market. Without the consent of the Financial Secretary, no individual or organization may hold more than 5% of the shares of the Stock Exchange of Hong Kong.

HKEx's members include Options Clearing House Limited of the Stock Exchange of Hong Kong, Hong Kong Futures Clearing Company Limited and London Metal Exchange, the world's leading base metal market. It is worth mentioning that HKEx has exchanges in Hong Kong and London.

Users need to know the trading rules if they want to buy and sell Hong Kong stocks. For example, Hong Kong stock trading supports T+0 cycle trading, that is, it can be bought and sold on the same day. Moreover, there is no limit to the fluctuation range, and the fund settlement adopts the T+2 system. There is no limit to the fluctuation range, which will expose investors to great risks.