This analysis is based on the method of average difference and the latest spot price data. The current average difference signal for phthalic anhydride in China is a deep pullback (bearish, corrective nature). In the short term, prices are showing a volatile trend. Given that the prices are at high levels for the 1-year, 3-month, and 60-day cycles, the upside potential is limited, and there is a need to be cautious about the risk of a short-term pullback.
I. Recent Spot Manufacturer Quotation Dynamics in China
On August 25, several phthalic anhydride producers in China raised their ex-factory prices. Overall plant operating rates remained stable, and it is common for companies to have low inventories and limit order acceptance.
Zhenjiang Liancheng Chemical (capacity 120,000 tons): Phthalic Anhydride quotation is 9,400 CNY/ton, an increase of 100 CNY/ton from the previous level, with normal operation of the plant.
Tongling Chemical Industry (capacity 80,000 tons): The o-xylene phthalic anhydride unit has resumed operation, with a quoted price of 9,400 CNY/ton, an increase of 200 CNY/ton from the previous level. Supply is tight and sales are limited.
Panjin Reid Chemical (capacity 100,000 tons): The phthalic anhydride unit has resumed operation, with limited inventory. The quoted price is 9,100 CNY/ton, an increase of 100 CNY/ton from the previous level.
Changzhou Xinyang (capacity 100,000 tons): facility utilization rate around 50%, low inventory, quoted price 9,450 CNY/ton, an increase of 100 CNY/ton, with limited order acceptance.
II. Analysis of the Mean Difference Indicator
2.1 Mean Difference Variation Table
| Average Difference Type | Value on August 27, 2026 | Value on August 26, 2026 | Direction of Change |
|---|---|---|---|
| 5-day Average Difference (D5) | 46.67 | 70 | - |
| 10-day Average Difference (D10) | 55 | 56.67 | - |
| 20-day Average Difference (D20) | 100.83 | 90 | + |
2.2 Signal Status Determination
When the combination of the three current central differences in direction is (-, -, +), the corresponding signal is a deep pullback (bearish, with a corrective nature).
2.3 Conclusion on Trend Directions
The current phthalic anhydride price trend is fluctuating. The reason is that the changes in the three averages compared to the previous day are not completely consistent, which does not meet the criteria for a clear upward or downward trend. Coupled with a strong correction and a bearish signal, the short-term trend is mainly characterized by fluctuation and correction.
III. Price, Location, and Spatial Reference
The current phthalic anhydride price is in the top 20% range of the 60-day, 3-month, and 1-year cycles, corresponding to the 5th level (high position), with limited room for further increases.
4. Price Trend Over the Past Year
V. Risk Warning
The above analysis is for reference only and does not constitute trading advice. The latest available data is up to August 27, 2026, and it is recommended to refer to real-time data.
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