This report is based on the mean difference analysis framework, combining the latest spot prices, plant operations, and supply and demand data from the industrial chain to analyze the short-term price trend of phthalic anhydride: currently, phthalic anhydride is at a high price level over the past year, showing a strong consolidation (bullish) fluctuation trend in the short term. The supply side is supported by multiple plant maintenance activities, but there is limited room for further price increases at these high levels, for reference by industry participants in China.
Data Description
The latest available phthalic anhydride spot data in China is up to October 15, 2026. It is recommended to refer to real-time data.
I. Table of Finite Differences
| Difference Type | Value on October 15, 2026 | Value on October 14, 2026 | Direction of Change |
|---|---|---|---|
| 5-Day Difference (D5) | 213.33 | 286.66 | - |
| 10-Day Difference (D10) | 158.33 | 146.67 | + |
| 20-Day Difference (D20) | 139.17 | 112.5 | + |
II. Signal State Determination
The current combination of average difference change symbols is (－, ＋, ＋), corresponding to a strong consolidation (biased towards bullish) signal.
III. Conclusions on Trend Directions
The short-term phthalic anhydride price trend in China is expected to be volatile with a bullish bias. The reason is that the changes in the three averages compared to the previous day are not entirely consistent, which meets the criteria for a volatile market. Additionally, the combination of indicators suggests a strong consolidation (bullish bias), resulting in an overall characteristic of volatility with a bullish trend.
4. Spatial Reference
Phthalic anhydride prices are at high levels for 60-day, 3-month, and 1-year periods, corresponding to the 5th level out of 5, indicating limited room for further increases. However, with support from supply-side maintenance, the short-term downward trend is also relatively manageable.
V. Fundamental Support Evidence
Recently, the supply of phthalic anhydride in China has contracted significantly: since October, multiple companies such as Changzhou Xinyang (100,000 tons capacity), Zhenjiang Liancheng (120,000 tons capacity), and Shijiazhuang Bailong (80,000 tons capacity) have shut down their facilities for maintenance or catalyst replacement. This has led to oversold/limited inventories, tight supply, and consecutive price increases, providing strong support for prices.
VI. 1-Year Trend Chart Display
VII. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
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