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Home > DOP News > News Detail
DOP News
SunSirs:Costs Increased, and DOP Prices Rose Sharply
March 05 2026 14:58:06SunSirs(John)

The price of plasticizer DOP rose sharply

According to SunSirs’ commodity market analysis system, as of March 2nd, the price of DOP was 7,800.84 RMB/ton, a slight increase of 1.30% compared to the price of 7,700.84 RMB/ton on March 1st. The operating rate of DOP plasticizer manufacturers decreased to around 57-60%, resulting in a decline in DOP production. Due to geopolitical factors in the Middle East, the prices of isooctanol and phthalic anhydride rebounded on March 2nd, leading to increased raw material prices and higher DOP costs, ultimately causing the price of DOP plasticizer to fluctuate upwards.

The price of the raw material isooctanol rebounded

According to SunSirs’ commodity market analysis system, as of March 2nd, the price of isooctanol was 6,833.33 RMB/ton, a rebound of 2.50% compared to the price of 6,666.67 RMB/ton on March 1st. Isooctanol producers were operating at high capacity, with plant operating rates maintained at around 95%, ensuring ample supply. The price rebound on March 2nd was also influenced by Middle East geopolitical factors, and rising plasticizer costs further supported the increase in DOP (dimethyl phthalate) prices.

Phthalic anhydride prices  rebounded

According to the commodity market analysis system of SunSirs, as of March 2nd, the price of OX method phthalic anhydride was 6,383.33 RMB/ton, a rebound of 3.79% from the price of 6,150 RMB/ton on March 1st; and a fluctuating increase of 2.24% from the price of 6,243.33 RMB/ton on February 1st. Affected by geopolitical factors in the Middle East, crude oil prices surged, leading to an increase in the price of raw material OX, and consequently, an increase in the cost of phthalic anhydride. The rebound in phthalic anhydride prices had increased the cost of plasticizers, providing stronger support for further increases in plasticizer prices.

Market Outlook

According to data analysts at SunSirs, the price of isooctanol had risen sharply due to geopolitical factors in the Middle East, while the price of phthalic anhydride has rebounded, leading to an increase in the cost of DOP plasticizer. Looking ahead, with rising costs and weak supply and demand, the price of DOP plasticizer is expected to fluctuate upwards in the future.

SunSirs has been continuously tracking price data for over 200 commodities for nearly 20 years, please contact support@sunsirs.com for subscription.

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