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SunSirs: Market Trends of Phthalic Anhydride in Some Parts of China on February 11
February 12 2026 14:21:16SunSirs(John)

On February 11, the benchmark price of phthalic anhydride on Sunsirs was 6,183.33 RMB/ton, a decrease of 0.96% compared with the beginning of the month (6,243.33 RMB/ton).e

On February 11th, the East China phthalic anhydride market saw a weak and consolidating trend. The mainstream price for OX method phthalic anhydride was 6,000-6,200 RMB/ton, while the price for naphthalene-based phthalic anhydride was 5,550-5,900 RMB/ton. Industrial naphthalene prices stabilized weakly, OX prices stabilized, and phthalic anhydride costs stabilized weakly. Downstream plasticizer prices fluctuated and declined, with plasticizer manufacturers operating at low but stable capacity. Downstream demand was primarily for immediate needs, and phthalic anhydride purchases were mainly on an as-needed basis. Phthalic anhydride demand weakened, while manufacturers maintained stable capacity, resulting in ample supply and low inventory levels. The phthalic anhydride market is expected to consolidate weakly in the near future.

On February 11th, the phthalic anhydride market in Shandong province remained weak and consolidating. The mainstream price for OX method phthalic anhydride was 6,000-6,200 RMB/ton, while the mainstream price for naphthalene-based phthalic anhydride was 5,550-5,900 RMB/ton. Raw material OX prices stabilized, industrial naphthalene prices weakened and stabilized, leading to a weak and stable cost for phthalic anhydride. Downstream plasticizer prices fluctuated and declined. Phthalic anhydride manufacturers maintained stable operating rates, resulting in a low but stable operating rate. The phthalic anhydride market supply was tight, and plasticizer manufacturers' operating rates remained stable. Demand for phthalic anhydride weakened. The market is expected to remain weak and consolidate in the near future.

On February 11th, the price of phthalic anhydride in Jiangsu Province fluctuated and stabilized. The mainstream price for OX method phthalic anhydride was 6,000-6,200 RMB/ton, while the mainstream price for naphthalene-based products was 5,550-5,900 RMB/ton. Phthalic anhydride manufacturers maintained stable operating rates, with the low operating rate stabilizing. The domestic phthalic anhydride market had ample spot supply. OX prices stabilized, while industrial naphthalene prices remained weak and stable. The cost increase for phthalic anhydride weakened its support. Downstream plasticizer prices fluctuated and declined, with plasticizer manufacturers operating at stable capacity, further weakening demand for phthalic anhydride. Downstream purchases were primarily for immediate needs. The phthalic anhydride market is expected to consolidate weakly in the near future.

If you have any inquiries or purchasing needs, please feel free to contact SunSirs with support@sunsirs.com.

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