On January 7, the phthalic anhydride (PA) plant of Changzhou Xinyang has a capacity of 100,000 tons, with the operating rate of the manufacturer's PA plant below 50%. The inventory is at a low level, and the PA quotation is 6,100 yuan/ton, up by 50 yuan/ton. PriceSeek analysis of PA, with a long-short score of 1: The operating rate of Changzhou Xinyang's PA plant is below 50%, indicating a reduction in supply; the low inventory further exacerbates market supply tightness; the quotation has increased by 50 yuan/ton to 6,100 yuan/ton, directly reflecting market bullish sentiment. These factors collectively drive the upward movement of PA spot prices, benefiting short-term market conditions. It is recommended to monitor the subsequent recovery of plant operations to prevent supply improvements from alleviating price pressure.