Chemical Updates

Asian Acetic Acid/VAM: AA prices rise on higher feedstock costs / East China AA price rose Yuan 125/mt WOW / VAM prices fall as plants resume operations

Aug 29, 2026

Asian acetic acid (AA) and vinyl acetate monomer (VAM) prices moved in opposite directions in the week ending Aug. 27, with domestic AA prices in China buoyed by rising feedstock costs, while VAM prices softened as producers returned from scheduled maintenance, easing the supply tightness that had underpinned the market in recent weeks. Bullish sentiment in the Chinese AA market was driven by higher feedstock methanol costs, which lifted values across both domestic and export markets. Rising production costs saw FOB China spot cargoes offered at $430/metric ton Aug. 27, up $10/mt from the previous week. Buying indications were heard at $410– $420/mt FOB China, with some deals concluded at $420/mt. the FOB China AA price at $420/mt, up $10/ mt week over week Aug. 27, while the East China...

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