For commodity futures, the variety of transactions generally meets the following conditions; Bulk products are easy to be classified, stored and transported in quality grades, and the market demand and total supply of this product are large. The price fluctuates to some extent and is not controlled by the government, so it is necessary to avoid price fluctuation.
Now the varieties traded are: soybean, corn, wheat, soybean oil, soybean meal, copper, aluminum, rubber, fuel oil, sugar and cotton.