As of October 28, 2026, the average spot market price of phthalic anhydride in China was reported at 10,733.33 CNY/ton. In the short term, the market shows a strong rebound with a tendency to fluctuate. The current price is in the high range of the past year, with stable cost support but limited room for further increases. The supply and demand of spot goods are in a tight balance, and manufacturers have low inventory levels, accepting orders on a limited basis.
1. Mean Deviation Change Table
| Mean Difference Indicator | Value as of 2026.10.28 | Value as of 2026.10.27 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | 76.66 | 50 | + |
| 10-Day Mean Difference (D10) | 18.34 | -5 | + |
| 20-Day Mean Difference (D20) | 80.83 | 116.66 | - |
2. Signal Status Judgment
The current three deviation change direction combinations are (+, +, -), which align with the "strong rebound (bullish, rebound nature)" signal in a volatile range in China.
3. Trend Direction Conclusion
The current phthalic anhydride price trend in China is oscillating with a bullish bias (characterized by a strong rebound).
Reason: The changes in the three differences from the previous day were not completely consistent, failing to meet the clear criteria for an upward or downward trend. Therefore, it is categorized as a fluctuating trend, with the corresponding symbol combination indicating a bullish rebound.
4. Position Space Reference
The current phthalic anhydride price is in the 5th tier (high) of the nearly 1-year cycle in China, with limited room for further increase.
5. Trend Chart Display
6. Fundamental Evidence
Supply Side: Chinese phthalic anhydride manufacturers have increased their operating rates, with stable spot supply. Leading companies are oversold and are limiting orders. Changzhou Xinyang's phthalic anhydride prices have been raised by 50 CNY/ton daily for three consecutive days, reaching 10,800 CNY/ton on October 28.
Cost Side: Crude oil prices have been fluctuating upward, while the prices of raw materials such as phthalic anhydride and industrial naphthalene have remained stable, providing solid cost support for phthalic anhydride.
Demand Side: The operating load of downstream plasticizer enterprises has increased, and rigid demand procurement support still exists. In the East China region, the mainstream negotiation price for phthalic anhydride by ortho-xylene method is 10,000-10,600 CNY/ton, while the price for phthalic anhydride by naphthalene method is 9,600-9,900 CNY/ton. The overall market trend is strong and stable.
Risk Warning
The above analysis is for reference only and does not constitute trading advice.
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