On September 4, the sales-to-output ratio of polyester filament sample enterprises flashed a red light: the average ratio stood at only 21.0%, down 4.8 percentage points from the previous trading day. Behind this figure lies a collective "vote with feet" by downstream users against high-priced raw materials—purchases remained just-in-time, and trading sentiment was cold. When upward cost pressure meets downward demand resistance, the chemical fiber supply chain is stuck in a typical "high-price deadlock."
Signals Behind the Sales-to-Output Data
A single-day ratio of 21% means nearly 80% of that day's output failed to convert into actual sales, and inventory pressure is quietly accumulating. Looking at individual sample enterprises, ratios ranged from 0% to 40%, showing clear divergence: some firms managed on prior orders, while others approached near-zero transactions. This divergence is not accidental—it reflects a malfunctioning pricing mechanism. When prices exceed downstream psychological thresholds, purchasing behavior shifts from stockpiling to wait-and-see.
Notably, this decline is not an isolated event. Data from previous trading days already showed similar trends, and the September 4 drop merely made the contradiction more visible. For polyester filament producers, this means the sustainability of price-support strategies is being tested. For downstream weaving enterprises, high raw material costs are squeezing already thin processing margins.
High-Price Game and Industrial Chain Transmission
The price deadlock in polyester filament is essentially a "chicken game" between upstream and downstream. Upstream producers, constrained by high costs of PTA and MEG, have limited room to cut prices. Downstream users, facing weak terminal orders and rising finished goods inventories, have decreasing tolerance for high-priced raw materials. This two-way squeeze leads to imbalanced profit distribution across the chain and obstructs price transmission mechanisms.
From an industrial cluster perspective, weaving clusters in Jiangsu and Zhejiang have shown signs of reduced operating rates, with some small and medium factories adopting a "work three days, rest four" schedule to digest inventories. Raw material procurement cycles have lengthened, and the mainstream strategy is now buy-as-needed. This behavioral shift, in turn, intensifies sales pressure on polyester filament producers, creating a negative feedback loop of "lower prices leading to more wait-and-see." For chemical fiber traders, current price spreads are insufficient to cover capital costs, causing speculative demand to shrink sharply.
Market Expectations and Possible Breakthroughs
In the short term, polyester filament prices may maintain high-level fluctuations, but downside risks are accumulating. If the sales-to-output ratio persistently stays below 30%, inventory pressure will force leading enterprises to offer promotional discounts, potentially triggering a round of price corrections. However, cost-side support remains, as PTA plant maintenance season may limit the decline. The real turning point lies in the recovery of terminal demand—if autumn/winter fabric orders are released as expected, the current deadlock may ease.
For market participants, the current phase calls for more attention to inventory turnover rather than price fluctuations. Polyester filament producers need to make more flexible operating decisions, avoiding blind price support when demand is unclear. Downstream buyers should grasp the rhythm of restocking, moderately locking in forward supplies when prices correct.