Yes, generally speaking, you want to buy something, but it will take three months to buy it, but you don't know what the price will be like after three months, so you should first find someone who will sell it to you after three months, sign a contract first, you should pay a part of the deposit first, and then buy it at the contract price after three months, thus avoiding the risk of price change within three months. The so-called futures refer to commodities that have not yet expired. This commodity may have been produced but not yet applied, or not yet produced, but it will be produced in the expected time.