The polyester industrial chain is experiencing a typical cost-push rally. PTA futures have firmly stood above 6,000 yuan per ton, with spot prices rising in tandem, and polyester filament quotes have followed suit. However, in stark contrast to upstream strength, downstream weaving mills have not shown synchronized enthusiasm for chasing prices, and the price transmission chain is clearly obstructed at the intermediate stage.
Supply Contraction Lifts PTA, Cost Support Unlikely to Fade Soon
The immediate trigger for the PTA rally is a significant contraction in supply. Since the second quarter, multiple large domestic PTA units have entered concentrated annual maintenance, coupled with a temporary shortage of upstream PX feedstock, dragging the industry operating rate to below 60%, a ten-year low. The low operating rate has directly led to months of destocking in social inventories, tightening spot availability, strengthening basis, and lifting spot premiums, providing solid fundamental support for prices.
Meanwhile, the capacity cycle inflection point is clear: no new PTA capacity is slated for commissioning this year, easing long-term supply expansion pressure and turning market expectations for the medium-term supply-demand balance more optimistic. International crude oil prices have been fluctuating higher, with geopolitical conflicts disrupting energy transport, further pushing up PX costs. Costs are transmitted layer by layer from upstream to downstream, passively raising production costs for polyester enterprises and strengthening their willingness to support prices.
Transmission Hindered: Filament Gains Lag, Upstream-Downstream Bargaining Intensifies
Theoretically, PTA accounts for over 60% of polyester filament production costs, so raw material increases should drive filament prices up in tandem. In the spot market, filament factories have raised quotes following PTA, and some specifications saw temporary sales improvement, but price transmission is not smooth. Weaving mills, facing rapidly rising raw material quotes, generally adopt a procurement strategy of buying on demand and replenishing in small batches. High-priced goods struggle to see volume, and the market frequently experiences a situation where "quotes rise but actual transaction prices lag," intensifying upstream-downstream bargaining.
The root cause of this bargaining is weak end demand. The textile market is currently at the transition between off-season and peak season, with autumn/winter fabric stocking for domestic sales just starting and proceeding slowly. Foreign trade orders are recovering less than expected, overseas destocking pressure persists, weaving mill operating rates remain at relatively low levels for the season, and grey fabric inventories have not been fully digested. If filament prices rise too quickly, they will further squeeze the already thin profit margins of weaving, easily triggering negative feedback downstream, forcing polyester plants to concede on prices, and leading to a pullback after the rally.
Outlook: Short-Term Strong Fluctuation, Height Depends on Order Fulfillment
In the short term, the low-inventory pattern for PTA will persist, and the raw material side will continue to provide bottom support for filament prices. Deep corrections are unlikely, and prices will likely maintain a strong but volatile pattern. However, the medium-to-long-term height of the market does not depend on upstream raw materials but on the degree of fulfillment of end textile orders.
As maintenance units gradually restart, PTA supply will recover, and the tight supply situation will ease marginally, weakening the driving force of raw material increases. If downstream weaving orders continue to recover and grey fabric destocking completes smoothly, filament prices may extend their upward trend. Conversely, if end demand fails to keep up, the upside for filament prices will be severely capped, and prices will likely fluctuate at high levels, with cost and demand pulling in opposite directions.