SunSirs: Phthalic Anhydride Market Trends in Some Regions of China on September 17
September 18 2025 10:22:45     SunSirs (John)On September 17, the benchmark price of phthalic anhydride on SunSirs was 6,300.00 RMB/ton, the same as at the beginning of this month.
On September 17th, the phthalic anhydride market in Shandong Province stabilized after fluctuating. The mainstream price of OX-based phthalic anhydride was 6,150-6,350 RMB/ton, while the mainstream price of naphthalene-based phthalic anhydride was 6,000-6,200 RMB/ton. The price of raw material OX stabilized, and the price of industrial naphthalene remained strong. Phthalic anhydride still had cost support, while the downstream plasticizer market was weak and consolidating. Phthalic anhydride manufacturers maintained stable equipment operation and the operating rate of phthalic anhydride enterprises was stable. Overall, the phthalic anhydride market was adequate, plasticizer enterprises maintained stable load, and phthalic anhydride demand remained stable. Phthalic anhydride prices are expected to fluctuate and consolidate in the future.
On September 17th, phthalic anhydride prices in Jiangsu Province stabilized, with the mainstream negotiated prices for OX-based products ranging from 6,150 to 6,350 RMB/ton and for naphthalene-based products ranging from 6,000 to 6,200 RMB/ton. Phthalic anhydride manufacturers maintained stable equipment operations, with operating rates remaining stable. Domestic spot supplies of phthalic anhydride were ample, while prices for raw material OX stabilized. Prices for industrial naphthalene fluctuated but then stabilized. Phthalic anhydride cost support remained, while downstream plasticizer prices consolidated weakly. Plasticizer manufacturers maintained stable production, supporting demand for phthalic anhydride and continued downstream purchases. The phthalic anhydride market is expected to stabilize in the future.
On September 17, the phthalic anhydride market in East China saw fluctuating prices. The mainstream quotes for OX-based phthalic anhydride were 6,150-6,350 RMB/ton, while those for naphthalene-based phthalic anhydride were 6,050-6,200 RMB/ton. Industrial naphthalene prices stabilized after fluctuations, as did OX prices, supporting phthalic anhydride costs. Downstream plasticizer prices were weak and consolidating, with plasticizer manufacturers maintaining stable equipment operating rates. This provided support for downstream procurement, with phthalic anhydride primarily purchased on-demand. Phthalic anhydride demand remained stable, with manufacturers maintaining stable equipment operating rates, ample supply, and low inventories. Phthalic anhydride prices are expected to stabilize in the future.
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