As of November 5, 2026, the spot price of Phthalic Anhydride in China, after a period of consecutive increases, has entered a correction phase. The weakening of crude oil and industrial naphthalene prices at the cost end, coupled with a decrease in demand support from downstream plasticizers, indicates that Phthalic Anhydride is currently in a Mild Pullback stage. The price is at a high level within the last year's cycle, with limited room for further increases, and is expected to experience a short-term bearish fluctuation.
Data Description
The latest available data is up to November 5, 2026, and it is recommended to refer to real-time data.
I. Table of Average Deviation Changes
| Mean Difference Indicator | Value on 2026.11.05 | Value on 2026.11.04 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | -86.67 | 10 | - |
| 10-Day Mean Difference (D10) | -1.66 | 18.34 | - |
| 20-Day Mean Difference (D20) | 39.16 | 34.16 | + |
II. Signal State Determination
The current combination of changes in divided differences is (–, –, +), which constitutes a Mild Pullback (bearish, corrective) signal.
III. Conclusion on Trend Directions
The current price trend for Phthalic Anhydride is volatile (bearish):
Reason: The change directions of the three differences compared to the previous day are not entirely consistent (5-day difference and 10-day difference decreased, while 20-day difference increased), which does not meet the criteria for Clear Uptrend / Downtrend, indicating a Mild Pullback signal within a consolidation range. Additionally, on November 5, the Phthalic Anhydride quotes in major production areas such as Shandong generally fell, with cost support weakening and downstream rigid demand procurement enthusiasm declining, suggesting a short-term bearish trend.
4. Location and Spatial Reference
Phthalic Anhydride prices have remained at high levels across the 60-day, 3-month, and 1-year timeframes, corresponding to the fifth tier of the five-tier pricing structure. Upside potential is limited, and a pullback would need to confirm sufficient downside room.
VI. Fundamental Analysis Evidence
Cost side: On November 5, crude oil prices fluctuated and declined; raw material o-xylene prices stabilized; industrial naphthalene prices fluctuated downward; and cost support for phthalic anhydride weakened significantly.
Supply and demand: Phthalic anhydride producers have increased plant operating rates, keeping spot supply stable; downstream plasticizer prices have been volatile and declining, and although plasticizer plants have raised operating rates, rigid demand procurement has weakened, leading to softer support for phthalic anhydride demand.
Company quote: On November 5, Changzhou Xinyang quoted Phthalic Anhydride at RMB 10,800 per tonne, down RMB 50 per tonne from the previous day, with orders accepted on a limited basis.
VII. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
(Source: )
