Chempricehub alert: U.S. PX market closing prices declined on May 21.

May 22 News – On May 21, the U.S. paraxylene (PX) market saw a decline of $9/ton in closing prices, settling at $1,527–$1,537/ton FOB US Gulf. According to Chempricehub's PX assessment, the bull-bear score stands at -1. On the spot market front, U.S. PX prices fell by $9/ton on May 21, with weakness in external markets exerting bearish pressure on domestic PX spot prices. On the futures front, all listed contracts for PX on the Zhengzhou Commodity Exchange (ZCE) for delivery on May 21, 2026, closed lower, reflecting a pervasive bearish sentiment in the market and weighing on short-term futures prices.