On February 4, the commodity price ratio index between iso-octanol and DOP on Business Society was 114.26, a decrease of 0.63 points from the previous day. Compared to the highest point of 147.70 in the cycle (February 7, 2022), it fell by 22.64%, and compared to the lowest point of 91.74 on November 3, 2015, it rose by 24.55%. (Note: The cycle refers to the period from January 1, 2012, to the present.) The price of iso-octanol fluctuated and declined, while the price of DOP also fluctuated and declined, with downward pressure on DOP remaining and upward momentum weakening.

On February 4, the commodity price ratio index between phthalic anhydride and DOP on Business Society was 84.75, an increase of 0.27 points from the previous day. Compared to the highest point of 113.13 in the cycle (October 16, 2022), it fell by 25.09%, and compared to the lowest point of 45.17 on July 27, 2021, it rose by 87.62%. (Note: The cycle refers to the period from January 1, 2012, to the present.) The price of phthalic anhydride fluctuated and declined, while the price of DOP also fluctuated and declined, with upward momentum for DOP weakening and downward pressure remaining.

On February 5, the DOP market in Jiangsu Province showed a weak decline, with quotations at 7,800 yuan per ton. In Shandong Province, the DOP market also declined, with quotations at 7,650 yuan per ton. In Zhejiang Province, the DOP market experienced a weak decline, with quotations at 8,000 yuan per ton.

On February 5, the raw material phthalic anhydride for DOP showed a weak decline, and the price of iso-octanol also weakened and declined. The cost of DOP raw materials experienced a weak decline. DOP production capacity decreased, downstream market conditions were average, with downstream demand primarily driven by rigid needs. Downstream customers' purchasing willingness was moderate, and transaction prices were negotiated on a case-by-case basis. DOP quotations ranged from 7,650 to 8,000 yuan per ton, showing a weak decline. Actual transaction prices also experienced a weak decline. The bullish factors for DOP weakened while bearish factors intensified, leading to a weak decline in the DOP market.