In August, PTA spot prices experienced a rise after an initial dip, with a monthly gain of 8.53%. By August 25, the East China PTA spot benchmark reached 6,453 yuan/ton, up 508 yuan from the start of the month. This rally was not demand-driven but a combination of supply contraction and cost escalation, indicating that the market is pricing in a supply-demand rebalancing ahead of time.
Background
In early August, PTA prices remained rangebound, with downstream polyester plants buying on a hand-to-mouth basis. Weaker terminal textile demand capped upside. In mid-August, multiple major units entered concentrated maintenance, pushing operating rates to yearly lows. Social inventories declined, spot supplies tightened, and prices began to rally. Simultaneously, international crude oil remained high due to geopolitical disturbances, and PX prices strengthened, providing solid cost support.
The core upward window was in mid-August, highlighting that supply-side changes have a stronger marginal impact on short-term prices than demand. For polyester plants, raw material costs rose rapidly while terminal orders had yet to recover, squeezing profit margins and forcing cautious purchasing.
Industry Impact
In the short term, the one-sided rally is likely over, and the market will enter a high-level wide range. The supply inflection has appeared: from late August to early September, maintenance units will restart, lifting operating rates and easing the tightness. The influx of new supply will cap upside, making supply recovery the key bearish factor.
Cost support is also weakening. As of August 24, WTI October settled at $85.01/barrel, and Brent November at $90.54/barrel. Oil prices are volatile, raising uncertainty. Multiple Asian PX units are resuming production, increasing supply expectations and slowing PX price gains, thus reducing support for PTA.
Demand focus is on the traditional "golden September and silver October" peak season. Current polyester operating rates are moderate, inventories reasonable, and the chain expects peak-season stocking, providing a floor. However, risks persist: terminal orders are recovering slowly. If peak orders disappoint, polyester sales will suffer, feeding back to PTA demand and causing price pullbacks. Thus, terminal orders will determine the peak season's height.
Long-term, PTA faces a capacity cycle inflection. In 2026, zero new domestic capacity ends a seven-year expansion. The industry enters an era of stock competition. Optimized supply will provide long-term floor support for prices and processing margins, enhancing price resilience and laying a foundation for profit recovery. This means the era of capacity-driven price suppression is over; future price fluctuations will be more demand-driven.