At the opening of the morning session, the main domestic futures contracts rose more than fell. Coking coal rose by more than 3%, soda ash rose by more than 2%, polysilicon, coke, alumina, Shanghai tin, iron ore rose by nearly 2%, No. 20 rubber, caustic soda, polyvinyl chloride (PVC) rose by more than 1%; in terms of decline, SC crude oil fell by more than 1%.