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SunSirs: With a Sharp Drop in Operating Rates, Isooctanol Prices Fluctuated and Rose Last Week
November 12 2025 09:03:59SunSirs(John)

Isooctanol prices fluctuated and rose 

According to the commodity market analysis system of SunSirs, as of November 7th, the price of isooctanol was 6,033.33 RMB/ton, a slight increase of 1.40% compared to the price of 5,950 RMB/ton on November 1st. Some companies underwent maintenance of their isooctanol equipment, resulting in a significant decrease in the operating rate of isooctanol plants, with an operating rate of 70%, leading to a decrease in isooctanol supply. The decline in propylene prices further reduced isooctanol costs. Last week's decrease in isooctanol supply, coupled with lower costs, had increased upward support for isooctanol prices, while downward pressure remained, resulting in a volatile but upward trend in isooctanol prices.

The cost of raw material propylene decreased

According to the SunSirs commodity market analysis system, as of November 7th, the price of propylene was 5,890.75 RMB/ton, a decrease of 2.61% compared to the price of 6,058.25 RMB/ton on November 1st. Last week, propylene prices fluctuated downwards due to declining raw material prices and reduced isooctanol costs, increasing downward pressure on isooctanol prices.

Downstream plasticizer DOP prices fluctuated upwards

According to the commodity market analysis system of SunSirs, as of November 7th, the price of DOP was 7,025.83 RMB/ton, a slight increase of 0.24% compared to 7,009.16 RMB/ton on November 1st. In November, the operating rate of DOP plasticizer enterprises increased slightly, leading to increased DOP production. Demand for isooctanol remained strong, further supporting the price increase of isooctanol.

Market outlook

According to analysts at SunSirs, isooctanol prices were facing downward pressure due to falling propylene and raw material costs. On the supply side, isooctanol plant operating rates dropped to 70%, a significant decrease, leading to a decrease in isooctanol supply. On the demand side, DOP plant operating rates had increased slightly, resulting in increased DOP production and continued support for isooctanol demand. Looking ahead, with declining isooctanol costs, reduced supply, and recovering demand, downward pressure on isooctanol prices is weakening while upward support is increasing. Isooctanol prices are expected to stabilize strongly 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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