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SunSirs: Supply Increased, and the Price of Isooctanol Fluctuated and Fell in August

August 13 2025 10:36:24     SunSirs (John)

The price of isooctanol fluctuated and fell in August 

According to the SunSirs’ commodity market analysis system, as of August 12, the price of isooctanol was 7,383.33 RMB/ton, a 1.99% decrease from the 7,533.33 RMB/ton on August 1. The price of isooctanol fluctuated downward in early August. Production at isooctanol plants resumed in August, with a slight increase in the utilization rate. This resulted in new production capacity and an increase in supply. Downstream plasticizer plants also resumed operations, increasing demand for isooctanol. This combined supply and demand led to a volatile decline in the price of isooctanol.

The price of the downstream plasticizer DOP fluctuated downward

According to the SunSirs’ Commodity Market Analysis System, as of August 12, the price of DOP was 7,809.16 RMB/ton, a 1.84% decrease from the  price of 7,955.83 RMB/ton on August 1. DOP production capacity increased to 66% in August, leading to an increase in plasticizer production and a volatile decline in plasticizer prices. This increase in plasticizer production and demand for isooctanol maintained support for its upward price.

In August, the operating rate of DOP enterprises increased, and the operating rate stabilized at 66%. The output of plasticizers increased, the demand for isooctanol increased, and the support for the price increase of isooctanol still existed.

Market outlook

Analysts of SunSirs believe that on the demand side, plasticizer DOP equipment production increased in August, leading to a rebound in demand for isooctanol, providing further support for isooctanol's future price increase. On the supply side, equipment production at isooctanol companies increased, coupled with the commissioning of new isooctanol production capacity, which increased isooctanol supply. Overall, both supply and demand for isooctanol were increasing, but overall isooctanol was still experiencing a period of inventory accumulation, and isooctanol prices are expected to fluctuate and decline in the future.

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