* * * Energy commodities * *. Include coal, oil and natural gas.
* * * Basic raw materials * *. Including copper, aluminum, nickel, zinc, lead, tin and other non-ferrous metals and some important industrial products.
* * * Agricultural products * *. Such as soybean, corn, wheat, rubber, sugar and cotton.
In commodity trade, there are two pricing methods: for mature futures varieties and primary products in developed futures markets, such as crude oil, soybeans and natural rubber, their prices are basically determined by the standard futures contract prices of the most famous futures exchanges; For futures varieties that have not been widely recognized and primary products in the futures market, such as iron ore, their prices are traded by the main buyers and sellers in the market every year.