On October 8, 2026, the spot price of phthalic anhydride in China remained steady at RMB 10,016.67 per ton. According to the mean‑difference method, the current market is in a strong, range‑bound consolidation phase with a slight bullish bias; prices are near the upper end of their one-year cycle, suggesting relatively limited upside potential going forward, while upstream and downstream sectors continue to provide stable support.
I. Table of Finite Differences
| Difference Type | Value on October 8, 2026 | Value on October 7, 2026 | Direction of Change |
|---|---|---|---|
| 5-Day Difference (D5) | 0 | 0 | Flat |
| 10-Day Difference (D10) | 8.33 | 16.67 | - |
| 20-Day Difference (D20) | -12.49 | -31.67 | + |
The most recent data currently available is as of October 8, 2026; please refer to real-time data for the latest information.
II. Signal State Determination
The current mean difference change combination is close to the (－, ＋, ＋) characteristic, which belongs to a strong consolidation (biased towards bullish) signal in the oscillation range.
III. Conclusion on Trend Direction
The current price trend is oscillating (with a bullish bias). Reason: The direction of change in the three averages compared to the previous day is not entirely consistent, which does not meet the criteria for a clear upward or downward trend, and the overall situation is within an oscillation range; the 20-day average difference has narrowed and rebounded significantly compared to the earlier period, highlighting a bullish attribute in the medium term.
4. Spatial Reference
Phthalic anhydride prices in China for 60-day, 3-month, and 1-year periods are all in the 5th tier (high) of a 5-tier ranking, indicating limited room for further increases and higher risks associated with chasing higher prices.
V. 1-Year Trend Chart Display
6. Industrial Chain Reference
Upstream raw materials: refined naphthalene, OX
Downstream demand side: diquat, phosmet, mancozeb, phthalate plasticizers, unsaturated resins, alkyd resins, etc.
VII. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
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