When PTA futures climbed back above 6,000 yuan per ton, the bullish sentiment in the chemical fiber market failed to reach downstream weaving mills, exposing a deep-seated conflict over profit distribution along the chain. The raw material side is strong due to supply cuts, while polyester filament is trapped in a game of 'quoted prices up, actual transactions lagging.' This rally is not simply cost-push; it is a struggle among chain links for profit share.
Supply Contraction and Inventory Structure: The Backbone of High PTA
The immediate driver of PTA's surge is a notable supply contraction. Since Q2, multiple large PTA units entered annual maintenance, compounded by a shortage of PX feedstock, pushing industry operating rates down to below 60%, a ten-year low. Low operating rates directly altered inventory structures: social inventories fell for months, spot supplies tightened, basis strengthened, and spot premiums rose, laying a fundamental foundation for price increases.
More importantly, the capacity cycle has turned. No new PTA capacity is expected this year, easing long-term supply expansion pressure and shifting market expectations from loose to tight. Meanwhile, international crude oil rose amid geopolitical disruptions to energy transport, lifting PX costs and reinforcing cost support down the chain. This rally is not speculative but backed by real supply-demand data.
Hurdles in Cost Pass-Through: The Game Behind Sluggish Filament Gains
In theory, PTA accounts for over 60% of polyester filament production costs, so raw material increases should drive filament prices up. In reality, filament mills raised quotes, and sales picked up for some specifications, but pass-through is not smooth. Weaving mills, facing rapidly rising raw material prices, are reluctant to chase highs, preferring on-demand, small-batch replenishment. High-priced goods struggle to transact, leading to a stalemate of 'quoted prices up, actual transactions lagging.'
The root cause is weak end-demand. The textile market is at a seasonal transition; autumn/winter fabric stocking has just begun and is slow. Foreign orders have not recovered as expected, overseas destocking pressure persists, weaving mill operating rates are at recent lows for the season, and greige inventory is not yet cleared. The supply gap from maintenance is temporary, while downstream consumption recovery takes longer. If filament prices rise too fast, they will squeeze weavers' already thin margins, likely triggering negative feedback, forcing polyester plants to concede, and causing prices to fall back.
Outlook: Near-Term Strength, Mid-Term Depends on Orders
In the short term, PTA's low inventory will persist, providing bottom support for filament prices, which are unlikely to see deep corrections and will likely remain firm with fluctuations. However, mid-to-long-term price levels do not depend on upstream raw materials but on the realization of downstream textile orders. As maintenance units restart, PTA supply will recover, easing tightness and weakening the upward driver.
If weaving orders continue to recover and greige inventories are cleared, filament prices may extend gains. Conversely, if end-demand lags, upside will be severely capped, with prices likely oscillating at highs amid cost-demand tug-of-war. This is a cost-push rally; filament has some resilience but is unlikely to see sustained sharp rises.