When PTA futures once again climbed above the 6,000 yuan per ton mark, the market instinctively expected polyester filament to follow suit. But reality painted a different picture: mills raised quotes, yet actual transaction prices lagged. This contrast highlights a head-on collision between cost push and weak demand, revealing the core profit distribution conflict in the polyester chain.
Event Background
The immediate driver of this PTA rally came from the supply side. Since the second quarter, several large domestic PTA units entered concentrated annual maintenance, compounded by a temporary shortage of upstream PX, dragging the industry operating rate to below 60%—a near-decade low. Low operating rates led to months of destocking in social inventories, tightening spot availability and strengthening basis, laying the fundamental groundwork for the price surge. Meanwhile, no new PTA capacity has been added domestically this year, easing long-term supply expansion pressure and reinforcing medium-term expectations.
Cost pressure from upstream intensified simultaneously. International crude oil fluctuated higher, geopolitical conflicts disrupted energy transport routes, pushing up PX prices. Costs transmitted layer by layer from upstream to downstream, raising polyester producers' production costs and strengthening their price-hiking resolve. Theoretically, PTA accounts for over 60% of polyester filament production costs, so raw material increases should drive filament prices up. However, actual transmission has been far from smooth.
Industry Impact
The primary resistance to filament price hikes comes from the downstream weaving sector. Facing rapidly rising raw material quotes, weaving mills showed weak willingness to chase prices, generally adopting on-demand purchasing and small-batch replenishment. High-priced goods struggled to see volume, and the market frequently witnessed a "quotes up, transactions stagnant" standoff. Behind this lies the softness of real terminal demand: the market is at a transition point between off-season and peak season, with autumn/winter fabric stocking just starting and progressing slowly; foreign trade orders have recovered less than expected, overseas destocking pressure persists, weaving mill operating rates are at relatively low levels for the season, and greige fabric inventories remain largely undigested.
This means the current rally is cost-driven, not demand-driven. The supply gap from maintenance is a temporary bullish factor, while downstream consumption recovery will take longer. If filament prices rise too quickly, they will squeeze the already thin profit margins of weaving mills, easily triggering negative feedback—downstream mills cutting production or refusing to purchase, forcing polyester plants to concede discounts, causing prices to spike and then retreat. Therefore, filament prices show some resilience but are unlikely to sustain a one-way surge.
Practical Recommendations
In the short term, the low-inventory pattern for PTA will persist, providing bottom support for filament prices, which are unlikely to see deep corrections and will likely remain firm but range-bound. However, the medium-term price ceiling does not depend on upstream raw materials but on the fulfillment of terminal textile orders. As maintenance units gradually restart, PTA supply will recover, easing the tightness and weakening the upward driver from raw materials.