[Domestic commodity futures markets mostly closed up in night trading, with chemical products leading the gains] On September 23, most domestic commodity futures markets closed up in night trading, with chemicals leading the gains, with SHFE butadiene rubber rising 3.71%; energy products all rising, SHFE fuel rising 3.33%; oils and fats mostly rising, with DCE beans rising 1.00%; non-metallic building materials rising or falling, mixed. PVC rose 0.78%; agricultural and sideline products saw mixed gains and losses, with CZCE white sugar rising 0.48%; black series led the decline, with DCE coking coal falling 1.06%. Among chemicals, CZCE PTA rose by 2.54%, DCE styrene rose by 3.00%, and INE No. 20 rubber rose by 2.66%. Among energy products, INE low-sulfur fuel oil rose 3.15% and DCE LPG rose 2.48%.