Asian Styrene Monomer: Prices log weekly gains on lower inventories / East China inventories drop 7,000 mt WOW / Southeast Asian supply tightens amid demand

Sep 05, 2026

styrene monomer CFR China and FOB Korea at $1,282/mt and $1,312/mt on Sept. 4, holding steady day over day, though the markers were set for weekly gains on lower inventories. According to data, the CFR China styrene marker gained $104.50/mt week over week in the week to Aug. 28. Port inventories of styrene monomer in East China stood at 40,800 metric tons as of Sept. 4, sliding 7,000 mt week over week, according to data from a China-based analyst. Inventories were last lower on Dec. 20, 2024, according to historical data. Dwindling styrene inventories in East China have supported prices this week, according to regional market participants. Port inventories in South China shed 8,400 mt over the same period to 17,600 mt, the data showed. Meanwhile, the H2 September/October intermonth...

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