September 15th, according to news,
According to the SpotTong AI assistant, as of September 14, 2026, a trend analysis of China’s maleic anhydride spot prices based on the mean deviation method indicates that in recent days, the factory prices of maleic anhydride in the major production regions of Shandong and Jiangsu have been raised consecutively. The mean deviation indicator has shown positive changes across the board, clearly confirming an upward trend in the short term. However, current prices are already at a high level seen over the past year, leaving limited room for further increases. It is crucial to closely monitor changes in upstream raw material costs and the downstream demand’s ability to absorb higher prices.
Data Explanation
The latest available data is up to September 14, 2026. It is recommended to refer to real-time data.
Difference Table of Means
| Indicator | Today’s Value (2026.09.14) | Yesterday’s Value (2026.09.13) | Direction of Change |
|---|---|---|---|
| 5-day Average Difference (D5) | 480.00 | 255.00 | + |
| 10-day Average Difference (D10) | 346.25 | 311.25 | + |
| 20-day Average Difference (D20) | 239.37 | 175.62 | + |
signal status determination
Three differences are all positive and have the same direction of change as the previous day, which is a clear signal of an increase.
Trend Direction Conclusion
Maleic anhydride prices are currently in a clear upward trend. The reasons for this judgment are: the 5-day, 10-day, and 20-day average differences compared to the previous day are all positive, meeting the criteria for a clear upward trend according to the average difference method. Additionally, the main producing regions in China have seen continuous price increases from major factories over several days, with strong supply and demand in the spot market supporting the upward trend in prices.
Spatial reference of location
Maleic anhydride prices over the past 60 days, 3 months, and 1 year in China have all been in the 5th tier (high price range), with limited potential for further increases. At these high levels, there is a possibility of a price correction.
Trend chart display
Main production areas spot market tracking
September 14, 2026: In Jiangsu, the factory price for solid maleic anhydride is RMB 8,900–9,500 per ton, and the factory price for liquid maleic anhydride is RMB 9,300–9,400 per ton. In Shandong, the factory price for solid maleic anhydride is RMB 8,900–9,500 per ton, and the factory price for liquid maleic anhydride is RMB 8,900–9,100 per ton. Both regions’ leading manufacturers have raised their quoted prices.
September 11, 2026: In the Jiangsu region, the factory price for solid anhydride is RMB 8,900–9,400 per ton, and the factory price for liquid anhydride is RMB 9,000–9,200 per ton; in the Shandong region, the factory price for solid anhydride is RMB 8,900–9,400 per ton, and the factory price for liquid anhydride is RMB 8,600–8,900 per ton. Major factories have raised their quoted prices.
September 10, 2026: In the Jiangsu region, the factory price for solid maleic anhydride is RMB 8,600–9,000 per ton, and the factory price for liquid maleic anhydride is RMB 8,700–8,800 per ton. In the Shandong region, the factory price for solid maleic anhydride is RMB 8,600–9,000 per ton, and the factory price for liquid maleic anhydride is RMB 8,300–8,500 per ton; major manufacturers have raised their quoted prices.
September 9, 2026: In the Jiangsu region, the factory price for solid maleic anhydride is RMB 8,000–8,600 per ton, while the factory price for liquid maleic anhydride is RMB 8,300–8,400 per ton. In the Shandong region, the factory price for solid maleic anhydride is RMB 8,000–8,600 per ton, and the factory price for liquid maleic anhydride is RMB 7,900–8,100 per ton; major manufacturers have raised their quoted prices.
supply chain reference
Upstream: The raw materials for maleic anhydride include hydrogenated benzene, n-butane, coking benzene, liquefied gas, and pure benzene. Recently, the prices of pure benzene and liquefied gas in China have been high, providing strong cost support for maleic anhydride.
Downstream: The downstream applications of maleic anhydride in China cover areas such as polyaspartic acid, tetrahydrophthalic anhydride, succinic acid, unsaturated polyester resins, tetrahydrofuran, and 1,4-butanediol. It is necessary to pay attention to the impact of the acceptance of high-priced maleic anhydride by downstream manufacturers on demand.
Risk Warning
The above analysis is for reference only and does not constitute trading advice.
