1. Signing and opening: You can sign this business through CCB outlets or e-banking channels. When signing a contract at the counter, I need to bring my valid ID card and my precious metal trading signing card opened in China Construction Bank account to the business outlets within the jurisdiction of the branch to which the signing card belongs. When signing an e-banking channel, you should abide by the operating rules of electronic trading methods and the rules of password use to avoid losses caused by operational errors. This business must be started under a real name, and it cannot be handled on behalf of others.

2. Opening an account: After signing this business, China Construction Bank will automatically open a two-way trading account and a margin account for you. The trading account is used to record the changes of precious metal positions in the account, and the margin account is used to calculate the receipt and payment of the margin and the trading profit and loss, which is linked to the customer's fund account and the signing account of the securities business system in your signing card. You can view the details of the margin account in real time.

3. Trading: After you register this business and automatically open an account, you can realize the two-way trading operation of shorting precious metals in the account on the same day.

4. Margin management: CCB will review your margin ratio every trading day to provide you with timely and comprehensive risk control measures. When the margin ratio is lower than a certain value,