Soybean meal is an international commodity futures, which is in great demand and fluctuates greatly, so Dalian Commodity Exchange opened a night market to try to benchmark with Chicago Futures Commodity Exchange. Daytime trading hours: 9:00- 1 1:30 every Monday to Friday, afternoon 13:30- 15:00, and other times specified by the exchange. Transaction unit: 10 ton/lot; The minimum price change is 1 yuan/ton; Price limit range: 4% of the settlement price of the previous trading day.