On January 13, the business-to-business price ratio index for isooctanol and DOP stood at 111.11, an increase of 0.27 points compared to the previous day. This represents a decline of 24.77% from the cycle's peak of 147.70 points (recorded on February 7, 2022) and an increase of 21.11% from the cycle's low of 91.74 points (recorded on November 3, 2015). (Note: The cycle refers to the period from January 1, 2012, to the present.) Isooctanol prices have shown strong stability, while DOP prices have also stabilized, with reduced downward pressure and sustained upward momentum for DOP.

On January 13, the business-to-business price ratio index for phthalic anhydride and DOP was 91.86, a decrease of 0.21 points compared to the previous day. This represents a decline of 18.80% from the cycle's peak of 113.13 points (recorded on October 16, 2022) and an increase of 103.37% from the cycle's low of 45.17 points (recorded on July 27, 2021). (Note: The cycle refers to the period from January 1, 2012, to the present.) Phthalic anhydride prices have experienced fluctuating increases, while DOP prices have stabilized with fluctuations, with sustained upward momentum and reduced downward pressure for DOP.

On January 14, the DOP market in Jiangsu Province showed consolidation, with quotations at 7,400 yuan/ton. In Shandong Province, the DOP market also exhibited consolidation, with quotations at 7,200 yuan/ton. In Zhejiang Province, the DOP market remained consolidated, with quotations at 7,500 yuan/ton.

On January 14, the price of phthalic anhydride, a raw material for DOP, experienced fluctuating increases, while isooctanol prices stabilized with fluctuations. The cost of DOP raw materials has risen, and DOP production capacity has decreased. Downstream market conditions are average, with demand primarily driven by essential needs. Downstream customers' purchasing willingness is moderate, and transaction prices are subject to negotiation. DOP quotations range from 7,200 to 7,500 yuan/ton, showing consolidation. Actual transaction prices have stabilized, with positive factors for DOP persisting and negative factors weakening. The DOP market is experiencing fluctuating consolidation.