You need to change money to transfer to a mainland bank card. Hong Kong adopts a continuous netting system. Under the continuous net settlement system, the securities purchased or sold by each CCASS participant from other CCASS participants will be offset by rolling, and the remaining net purchase or net sale share will be used as the settlement standard.

Exchange participants must complete the settlement with the central settlement system before 3:45 pm on the second trading day after each trading day (T day), which is generally called the "T+2" day settlement system.

When an extended data investor opens an account in a securities company, he must fill in the account opening form and sign a customer contract. The Code of Conduct for Registrants of the Securities and Futures Commission sets out the requirements for customer contracts (requiring the designation of risk disclosure statements).

As the client contract is a legal document binding on investors, investors must confirm that all information is true before signing the client contract. In case of doubt, investors should seek legal advice.

In order to protect their own interests, investors should personally go to the office of the securities company to open an account. Before trading securities, investors should know the channels and forms of placing orders, the calculation of commissions, and the collection methods of interest and other fees.

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