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SunSirs: Phthalic Anhydride Market Trends in Some Regions of China on October 14

October 15 2025 10:34:27     SunSirs (John)

On October 14, the benchmark price of phthalic anhydride on SunSirs was 6,216.67 RMB/ton, down 1.22% from the beginning of this month (6,293.33 RMB/ton).

On October 14th, phthalic anhydride prices in East China declined. The mainstream quotes for OX based phthalic anhydride were 6,100-6,300 RMB/ton, while those for naphthalene-based phthalic anhydride were 5,900-6,100 RMB/ton. Industrial naphthalene prices fluctuated and stabilized, while OX prices remained stable, weakening the cost support for phthalic anhydride. Downstream plasticizer prices declined, with plasticizer manufacturers operating at low capacity and consolidating. Downstream demand supported the market, while phthalic anhydride was primarily purchased on demand. Demand for phthalic anhydride was weak, with manufacturers operating at low capacity and consolidating. Phthalic anhydride supply was ample, and inventories were low. It is expected that the phthalic anhydride market will adjust weakly in the future.

On October 14th, the phthalic anhydride market in Shandong Province saw a volatile decline. The mainstream supply price for OX-based phthalic anhydride was 6,100-6,300 RMB/ton, while the mainstream supply price for naphthalene-based phthalic anhydride was 5,900-6,100 RMB/ton. The price of raw material OX was temporarily stable, while the price of industrial naphthalene fluctuated and stabilized. The cost support for phthalic anhydride weakened, and the downstream plasticizer market was weak and consolidating. Phthalic anhydride manufacturers adjusted their equipment utilization to low levels, and phthalic anhydride companies maintained low operating rates. The phthalic anhydride market was well supplied, plasticizer companies maintained stable loads, and demand for phthalic anhydride was weak. Phthalic anhydride prices are expected to consolidate weakly in the future.

On October 14th, phthalic anhydride prices fell in Jiangsu Province, with the mainstream negotiated prices for OX-based products ranging from 6,100 to 6,300 RMB/ton and for naphthalene-based products ranging from 5,900 to 6,100 RMB/ton. Phthalic anhydride manufacturers maintained stable equipment utilization at low levels, with the operating rate remaining stable. Domestic spot supplies of phthalic anhydride were ample, while the price of raw material OX remained stable. The price of industrial naphthalene fluctuated and stabilized, weakening the cost support for phthalic anhydride. Downstream plasticizer prices weakened, while plasticizer manufacturers maintained stable production. Demand for phthalic anhydride weakened, but downstream demand remained strong. The phthalic anhydride market is expected to fluctuate and consolidate in the future.

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