In the process of foreign exchange sales and purchases, after the buyer and the seller reach a foreign exchange sales and purchase agreement, the buyer and seller sign an agreement and agree that the amount of foreign exchange sold and sold at a certain price at a specific time in the future is the forward foreign exchange sales. Risk reserves.

Risk reserve refers to the funds established by the exchange to provide financial guarantees to maintain the normal operation of the futures market and to make up for losses caused by unforeseen risks of the exchange.