1. Gold spot trading. Spot trading of gold refers to buying and selling gold at a fixed price. Participants in the gold market must explain where gold is delivered, deposited or withdrawn, from which account the money is debited or credited, and in which currency it is quoted. 2. Deferred settlement and gold delivery. Gold deferred delivery trading business is referred to as Au(T+D). Investors buy and sell gold contracts through margin. After the transaction is completed, investors can choose to deliver on the same day or postpone delivery. 3. Gold futures trading. The so-called gold futures trading refers to the trading of gold futures contracts in the centralized trading market by open bidding. Gold futures contract is a standardized contract concluded by both parties to the transaction, and it is agreed to deliver a certain amount of gold at the gold price determined at the time of conclusion at a certain date in the future. 4. Gold option trading. Gold option transaction is the transaction of gold option contract between buyers and sellers. For the buyer of the gold option contract, paying a certain option fee means that he has obtained the contract execution right in a certain period in the future, and the buyer can also give up this right.