On October 23, the market price of phthalic anhydride in East China showed a stable trend. The mainstream quotation of orthophthalic method phthalic anhydride in the market is 10,000-10,600 yuan per ton, and the quotation of naphthalene method phthalic anhydride is 9,600-9,900 yuan per ton. Crude oil prices fluctuated and rose, which was transmitted to the downstream. The price of industrial naphthalene was consolidating strongly, with the quotation of orthophthalic at 10,150 yuan per ton. The price of orthophthalic tended to be stable, and cost support still existed. The market of downstream plasticizers tended to be stable, the operating load of plasticizer manufacturers' equipment increased, and downstream rigid demand was purchased. Phthalic anhydride was mainly purchased on demand, and demand support for phthalic anhydride still existed. The operating load of phthalic anhydride manufacturers' equipment rebounded, the supply of phthalic anhydride was stable, and the inventory of phthalic anhydride was at a low level. It is expected that the market of phthalic anhydride will be strong and stable in the future.

On October 23, the phthalic anhydride market in Shandong showed a strong and stable trend. The mainstream negotiated price of o-phthalic method phthalic anhydride was 10,000-10,100 yuan per ton, and the price of naphthalene method phthalic anhydride was 9,600-9,700 yuan per ton. Crude oil prices fluctuated and rose, with cost support still in place. The price of the raw material o-phthalic acid fluctuated and stabilized, the price of industrial naphthalene consolidated, the cost of phthalic anhydride stabilized, the market of downstream plasticizers stabilized, the operating load of phthalic anhydride manufacturers increased, the supply of phthalic anhydride market was stable, the operating load of plasticizer enterprises rebounded, the rigid demand support for phthalic anhydride weakened, and the phthalic anhydride market was strong and stable.

On October 23, the phthalic anhydride market in Jiangsu region saw strong consolidation. The mainstream negotiated price of o-phthalic method goods is in the range of 10,400-10,600 yuan/ton, and the quoted price of naphthalene method phthalic anhydride is 9,800-9,900 yuan/ton. The operating load of phthalic anhydride manufacturers has increased, and the spot supply in the domestic phthalic anhydride market is stable. Crude oil prices have fluctuated upward, the price of raw material o-phthalic has stabilized, the price of industrial naphthalene has fluctuated and consolidated, the cost of phthalic anhydride has stabilized, the market of downstream plasticizers has stabilized, the operating load of plasticizer enterprises has rebounded, and there is still support for phthalic anhydride demand. Driven by downstream rigid demand purchasing, the phthalic anhydride market has shown a strong and stable trend.