On September 8, 2026, the average spot price of phthalic anhydride in China remained stable at 9,483.33 CNY/ton. The average difference indicator shows that the current price is in a high-level fluctuation with a slightly bearish consolidation phase. Prices across multiple periods have entered a high-level range, and the room for further increases is limited. On the supply side, some manufacturers have low inventory levels and tight supply. On the demand side, overall downstream procurement is stable, and prices are expected to remain in a high-level fluctuation in the short term.
Data Description
The latest available phthalic anhydride spot data in China is up to September 8, 2026. It is recommended to refer to real-time data.
I. Table of Mean Difference Changes
| Average Difference Type | Value as of September 8, 2026 | Value as of September 7, 2026 | Direction of Change |
|---|---|---|---|
| 5-day Average Difference | 0 | 0 | Flat |
| 10-day Average Difference | 33.33 | 41.66 | - |
| 20-day Average Difference | 55.83 | 61.67 | - |
II. Signal State Determination
The current average difference change combination is (unchanged, -, -), which is a weak consolidation (bearish) signal.
III. Trend Direction Conclusions
The current price trend is oscillating (with a bearish bias), reason: the 5-day average difference has remained flat for two consecutive days, and both the 10-day and 20-day average differences have fallen compared to the previous day. The changes in these three average differences are not entirely consistent, indicating no clear one-sided trend. After a continuous rise, the price has entered a high-level stagnation and consolidation phase, which is generally bearish.
4. Spatial Reference
Phthalic anhydride 60-day, 3-month, and 1-year cycle prices are all in the 5th tier (high price range), with limited room for further increases, and there is a possibility of a high-level correction subsequently.
V. 1-Year Price Trend Chart
VI. Fundamental Analysis Reference
In early September, Chinese phthalic anhydride manufacturers operated normally. After the resumption of production at Tongling Chemical Industry Group's o-xylene phthalic anhydride unit, the supply remained tight, with some manufacturers limiting sales and focusing on internal use. On September 3, multiple manufacturers raised their quotes by 50-100 CNY per ton, and as of September 8, the spot average price remained stable. The upstream prices of refined naphthalene and OX provided moderate support, while the demand for downstream products such as unsaturated resins and plasticizers was steady. Under the balance of supply and demand, prices fluctuated at high levels.
VII. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
(Source: China)
