This daily report is compiled based on the latest DOP spot average prices and manufacturer quotations. Through the average difference analysis framework, it is determined that the current DOP average difference indicators are all trending upwards, with a clear increase in price trends. At the same time, prices are at a high point in the 1-year cycle. Upstream facilities are operating normally, and major manufacturers in China have collectively raised their factory quotations. The market transaction focus has shifted upwards, for reference by industry participants.
Data Description
The latest available DOP-related data is up to October 8, 2026. It is recommended to refer to real-time data.
I. Table of Finite Differences
| Mean Difference Indicator | Value on October 8, 2026 | Value on October 7, 2026 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | 133.34 | 0 | + |
| 10-Day Mean Difference (D10) | 16.66 | 5.83 | + |
| 20-Day Mean Difference (D20) | 29.38 | 8.13 | + |
II. Signal State Determination
The current three deviations are all positive and moving in the same direction, which is a clear signal of an increase.
III. Conclusion on Trend Direction
The price trend is clearly upward, reason: the changes in the 5-day, 10-day, and 20-day moving averages compared to the previous day are all in the same positive direction, which meets the criteria for a clear upward trend.
4. Location and Spatial Reference
Prices for the 60-day, 3-month, and 1-year cycles are all in the fifth tier (high range), leaving limited room for further increases.
V. Price Trend Chart for the Past Year
6. Latest Manufacturer Price Updates in China
On October 8, 2026, mainstream Chinese DOP manufacturers collectively raised their prices:
Dongying Yimeide Chemical: DOP factory price is 10,200 CNY/ton, with an increase of 100 CNY/ton. The actual transaction price has increased. The annual production of 200,000 tons of plasticizer equipment is operating normally.
Zhenjiang Liancheng Chemical: DOP ex-factory price is 10,550 CNY/ton, with an increase of 150 CNY/ton. The annual production capacity of 260,000 tons of plasticizer equipment is operating normally.
Kaifeng Jiuhong Chemical: DOP ex-factory price is 10,600 CNY/ton, with an increase of 100 CNY/ton. The total capacity of the 180,000 tons/year plasticizer plant in China is operating normally.
Seven、Industrial Chain Tips
It seems there might have been a slight misunderstanding. Here is the correct translation:
7. Industrial Chain Prompts
Upstream raw materials: n-octanol, phthalic anhydride, and isooctanol; downstream applications: PVC plasticizers.
VIII. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
(Source: )
