The delivery list is published on the website of the futures exchange, and all the information of the members of the buyers and sellers and the exchange is transmitted to the website of the futures exchange through computers and networks, so the transaction distinguishes between delivery methods. Delivery orders in some countries or regions are used to make up for the shortage of delivery, for example, soybeans in Australia and Brazil. This method is used in the futures trading of gold, silver, copper, aluminum and other products in China, but it is widely used in commodity futures exchanges in China.