As PTA futures once again climb above the 6,000 CNY/ton mark, bullish sentiment in the chemical fiber market is heating up. However, this rally, driven by supply cuts and rising costs, is hitting clear resistance as it passes down the chain. Polyester filament offers have risen, but actual transaction prices are lagging, intensifying upstream-downstream tussle. The market is in a typical window where costs push but demand fails to pull.
Supply Cuts and Cost Hikes: Two Engines of the Rally
The primary driver of this PTA price increase is a concentrated contraction in supply. Since Q2, several large domestic PTA units have entered annual maintenance, coupled with a temporary shortage of PX feedstock, pushing the industry's operating rate below 60% at one point, a decade-low. The sustained low operating rate has directly drawn down social inventories, tightened spot availability, and strengthened basis, providing solid fundamental support for prices.
Meanwhile, no new PTA capacity has been added this year, signaling a turning point in the capacity cycle and easing long-term supply expansion pressure, further reinforcing bullish expectations. International crude oil prices have fluctuated higher, with geopolitical conflicts disrupting energy transport routes, boosting PX costs. Cost pressures cascade down the chain, strengthening plants' willingness to adjust and hold prices.
Transmission Hiccups: Filament Struggles to Follow, Profit Allocation Conflicts Highlighted
Theoretically, PTA accounts for over 60% of polyester filament production costs, so raw material gains should drive filament prices up in tandem. However, spot market performance shows filament offers rising with PTA and some specs seeing short-term sales improvement, but transmission is not smooth. Weaving mills, facing rapidly rising raw material quotes, show weak willingness to chase high prices, generally adopting a demand-based, small-lot replenishment strategy. High-priced goods struggle to move in volume, and the situation of "offers rising but actual transaction prices stagnating" is frequent.
This intensifying upstream-downstream tussle is essentially a conflict over profit distribution. The upstream raw material side holds pricing power thanks to short-term supply gaps, while downstream weaving margins are razor-thin and highly sensitive to raw material increases. If filament prices rise too fast, it can easily trigger negative feedback downstream, forcing polyester plants to make concessions and sell, leading to a pullback.
End Demand is the Key Shortage, Short-Term Volatility Unavoidable
The core constraint on sustained filament gains remains real end demand. The textile market is currently at the seasonal transition point. Domestic autumn/winter fabric stocking has just started, with a slow pace; foreign trade orders are recovering less than expected, overseas destocking pressure persists, and weaving mills' operating loads are at low levels for recent years, with gray fabric inventories not fully digested.
The supply gap from upstream maintenance is a temporary positive, while downstream textile consumption recovery takes longer. In the short term, the low inventory pattern for PTA will continue, providing bottom support for filament prices, making a deep correction unlikely and keeping the market in a firm but volatile range. However, medium-to-long-term price heights do not depend on upstream raw materials but ultimately on the realization of terminal textile orders.
As maintenance units restart later, PTA supply will gradually recover, easing the supply tightness and weakening the upward driver. If downstream weaving orders continue to recover and gray fabric destocking completes, filament could extend its uptrend; otherwise, if end demand lags, filament's upside will be severely capped, leading to a high-level tug-of-war between costs and demand.