In mid-August, China's polyester staple fiber (PSF) industry collectively pressed the output-cut button. Major producers jointly introduced a self-discipline plan to postpone new capacity and reduce operating rates, aiming to support squeezed processing margins through forced supply contraction. This time, the cuts are not passive shutdowns due to equipment failures but a clear signal of proactive market adjustment.
Event Background
In July, PSF prices surged on geopolitical tensions that lifted international crude oil, with East China spot prices hitting 7,675 yuan/ton. But by early August, easing US-Iran tensions erased the geopolitical premium, weakening the raw material pull. Meanwhile, PTA and MEG showed divergent strength: two major PTA units delayed restarts, and rainfall disrupted port loading, pushing spot basis to nearly 300 yuan/ton, with August social inventories possibly falling to a 44-month low. MEG port inventories in East China dropped to a 15-year low due to Middle East tensions and unit maintenance, with spot premiums reaching 540 yuan/ton in early August. These low inventories provided tangible cost support for PSF.
However, strong costs did not reverse the industry's fundamentals. In July, the PSF operating rate stood at 70.36%, with ample spot supply and new capacity planned for the second half. Downstream yarn mills had high finished goods inventories, and terminal orders showed limited growth, with no substantial recovery in domestic or export demand. Under strong supply and weak demand, processing margins were squeezed, and industry losses widened. On August 15, major producers jointly launched a self-rescue plan focused on controlling supply increments, increasing output cuts, and avoiding vicious low-price competition to restore reasonable processing margins.
Industry Impact
After the cuts, the industry operating rate is expected to fall from 70.36% to around 67%, reducing monthly supply by about 30,000 tons. In the short term, this can ease spot oversupply, and with low inventories at some branded suppliers, price support at the bottom is clear. For the Keqiao textile market and surrounding Xiaoshao weaving clusters, tighter raw material supply will directly raise traders' procurement costs, limiting fabric price decline space and alleviating low-price competition. However, fabric price increases face significant resistance because downstream orders have not improved, and the market's ability to pass on raw material cost hikes is limited.
In the medium to long term, the effectiveness of output cuts faces uncertainties. First, execution may be flexible—once prices rebound and margins recover, cash-strapped companies may resume load. Second, new capacity is only deferred, not canceled, and supply pressure will return when the industry turns profitable. Most critically, demand is the core constraint on upward price movement. If September terminal orders do not improve, supply contraction alone cannot sustain a strong rally. The Keqiao market's transaction activity is a key window to observe demand realization; actual growth in new and repeat orders, as well as weavers' restocking willingness, will determine whether the output cuts' boost can last.
Practical Recommendations
Overall, this round of coordinated cuts can provide clear price support for PSF. From late August to early September, with cuts landing and high raw material basis, processing margins have room to recover. In mid-to-late September, the market will likely oscillate upward as costs weaken and demand repairs. The main risk lies in supply rebound after profit recovery—price improvements may trigger relaxation of cuts and deferred capacity launches, capping price and margin recovery.