This daily report analyzes the short-term price trend of phthalic anhydride based on spot price data. As of October 13, 2026, the average price difference indicator shows that the market is in a strong consolidation phase with a bullish bias. Maintenance at multiple major production plants has led to a tight supply, supporting prices. However, the current price is already at a high level for the past year, and the room for further increases is relatively limited. The analysis is provided for reference within the industry.
Data Description
The latest available phthalic anhydride price data in China is up to October 13, 2026. It is recommended to refer to real-time data.
I. Table of Finite Differences
| Mean Difference Indicator | Value on October 13, 2026 | Value on October 12, 2026 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | 40 | 63.33 | - |
| 10-Day Mean Difference (D10) | 121.66 | 93.34 | + |
| 20-Day Mean Difference (D20) | 85.84 | 73.33 | + |
II. Signal State Determination
The current combination of three differences in direction is (-,+,+), corresponding to a strong consolidation (biased towards bullish) signal.
III. Conclusion on Trend Direction
The current phthalic anhydride price trend is fluctuating (with a bullish bias), because the changes in the three averages compared to the previous day are not entirely consistent, which does not meet the criteria for a clear upward or downward trend. This falls within a fluctuation range, and the signal indicates a strong consolidation, suggesting a short-term bullish trend.
4. Spatial Reference
Phthalic anhydride 60-day, 3-month, and 1-year cycle prices are all in the 5th tier (high, within the top 20% range of the cycle), with limited room for further increases.
V. Fundamental Support Evidence
Supply Side : Since October 2026, multiple major phthalic anhydride producers in Changzhou XinYang and Zhenjiang Liancheng have shut down their plants for maintenance. Tongling Chemical and other operating companies have low inventory and tight supply, with most manufacturers limiting orders or even closing sales, providing strong support on the supply side.
Quotation Side: Since October, mainstream manufacturers have raised their phthalic anhydride quotations by 100–250 CNY per ton on average, with actual transaction prices continuing to climb.
VI. Trend Chart Display
VII. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
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