When PTA futures once again broke through the 6,000 yuan per ton mark, the polyester market's bullish sentiment quickly heated up, and polyester filament spot prices followed suit. However, this cost-led rally has encountered a distinct 'temperature difference' downstream: factory quotes rose, but actual transactions were difficult to expand. The strength at the raw material end and the weakness at the demand end are forming a tug-of-war within the polyester chain.
Event Background
The direct driver of this round is a significant contraction in supply. Since the second quarter, multiple large PTA units in China have entered concentrated annual maintenance, coupled with a temporary shortage of upstream PX feedstock, pushing the industry operating rate down to below 60%, a decade-low. This sustained low operation directly changed the inventory structure: PTA social inventories destocked for months, spot supply tightened, basis strengthened, laying the fundamental foundation for price increases. Meanwhile, no new PTA capacity has been added domestically this year, signaling a capacity cycle inflection point and easing long-term supply expansion pressure, further reinforcing bullish expectations.
International crude oil prices also rose, providing additional cost support. Geopolitical conflicts disrupted energy transport routes, pushing up PX prices, and raw material costs transmitted layer by layer downstream, passively raising production costs for polyester enterprises, strengthening their willingness to adjust and hold prices. Data shows PTA accounts for over 60% of polyester filament production costs, so raw material increases should logically drive filament prices up, but spot market performance has not been so smooth.
Industry Impact
The core resistance to filament price increases lies in insufficient support from real end demand. The textile market is currently at the transition point between off-season and peak season; domestic autumn/winter fabric stocking has just started, with a slow pace. Foreign trade orders recovered less than expected, overseas destocking pressure remains, weaving mill operating rates are at low levels for recent years, and greige fabric inventory pressure has not been fully digested. Facing rapidly rising raw material quotes, weaving mills are weak in chasing high prices, generally adopting on-demand purchasing and small-batch replenishment, making it difficult to expand high-price transactions, often resulting in 'quotes rise, actual transaction prices lag'.
This means that the supply gap caused by plant maintenance is a phased positive, while downstream textile consumption recovery will take longer. If filament prices rise too fast, it will further squeeze the already thin profit margins of weaving, easily triggering downstream negative feedback, forcing polyester plants to concede prices, and the rally could reverse. The contradiction in profit distribution within the chain is thus highlighted, and upstream-downstream game-playing intensifies.
Outlook and Strategy
In the short term, the low PTA inventory pattern will continue, the raw material end will support filament prices, making deep corrections unlikely, with a strong volatile pattern overall. But the height of the medium-to-long-term market does not depend on upstream raw materials, but ultimately on the fulfillment of terminal textile orders. As maintenance units restart later, PTA supply will gradually recover, easing the tight supply situation and weakening the driving force of raw material increases.
If downstream weaving orders continue to recover and greige fabric destocking completes successfully, filament prices may extend gains; conversely, if terminal demand fails to follow up, the upside space will be severely compressed, likely leading to high-level volatility with cost and demand pulling against each other. Therefore, this round is a typical cost-push rally; filament has some resilience, but a unilateral sustained surge is unlikely.