Beijing's economic development is not as good as other cities in China. There is no futures exchange in Beijing. There are four futures exchanges in China, namely Dalian Commodity Futures Exchange, Zhengzhou Commodity Futures Exchange, Shanghai Futures Exchange and China Financial Futures Exchange. The futures exchange is the place to buy and sell futures contracts and the core of the futures market. It is a non-profit organization, but its non-profit only means that the exchange itself does not conduct trading activities, and it does not mean that it does not attach importance to interest accounting.