1. Commodity futures trading belongs to margin trading, and a certain proportion of funds should be paid as contract margin, generally 5%-10% of the contract value;

2. Daily settlement. At the end of daily trading, the exchange will settle the profit and loss, trading margin, handling fee and taxes of the contract;

3. The futures trading price in a trading day must be within the limit of the fluctuation range, and it is deemed invalid if it exceeds the limit;

4. Position limit system, which limits the number of positions held by members and customers. If the position exceeds the limit, it will be forced to close the position or increase the margin;

5. When the speculative position of a member or customer's position contract reaches more than 80%, the brokerage member is required to declare.