On July 14, the polyester filament yarn sector reported data that at first glance suggested a rebound, but a closer look reveals a deepening split. The average sales-to-production ratio among sample enterprises reached 67%, up 13 percentage points from the previous trading day. However, the devil is in the details: the variance across individual firms is far wider than the headline number suggests.
Market Signals Behind the Sales Data
The 67% average ratio is not spectacular by recent standards, but the 13-percentage-point sequential gain did inject a short-term boost into market sentiment. Late trading on the previous day saw local sales ratios hit 300%, leading some market participants to sense an inflection point. Yet, when the individual sales figures are examined, a tale of two markets emerges:
- Leading firms recorded ratios between 140% and 300%, indicating active restocking
- The majority of small and medium-sized enterprises reported ratios in the 35% to 70% range, with some as low as 35%
- The dispersion index for sales ratios hit a multi-year high
This divergence signals that the upward push from rising polymerization costs has failed to create a smooth transmission chain. While cost increases did lift market sentiment and the transaction center of gravity moved steadily higher, downstream buyers are showing growing resistance to elevated prices.
Why Cost Pass-Through Stalls Mid-Chain
The current rise in polymerization costs is primarily driven by the temporary strength in upstream PTA and MEG prices. In a normal industrial chain logic, cost increases should cascade smoothly from PTA to polyester to filament yarn to weaving and finally to apparel. But in reality, the chain is encountering significant friction at the junction between filament yarn and weaving.
Three main factors are creating this resistance:
First, terminal orders in the weaving segment have not shown material improvement. Neither domestic e-commerce restocking cycles nor the pace of overseas export order recovery have given weaving mills enough confidence to accept higher prices. Without order support, mills are naturally reluctant to stock up at elevated levels.
Second, social inventories of polyester filament yarn remain relatively high. Although some plants conducted maintenance and reduced operating rates earlier in the month, overall destocking has been slow. Inventory pressure weakens sellers' bargaining power while giving buyers more room to negotiate.
Third, downstream purchasing strategies are undergoing a structural shift. The old pattern of panic buying—following price increases regardless of fundamentals—is receding. In its place, a rational approach of "procure as needed, restock on dips" is taking hold. This transformation means that each price increase now faces a more rigorous demand validation.
Short-Term Price Expectations and Industrial Impact
Based on current market signals, polyester filament yarn prices are likely to maintain a pattern of narrow-range fluctuations with a slight upward bias in the near term. Cost support from the polymerization segment will not disappear quickly, but weak demand caps any upside potential. For weaving mills, this means that the window for raw material procurement needs to be timed more precisely.
The structural impact of this divergence on each chain segment is significant:
- Large polyester plants can absorb cost pressures through product differentiation, customer loyalty, and scale economies
- Small and medium-sized filament yarn producers face dual pressures of customer attrition and margin compression
- For weaving mills, the flexibility of procurement strategy will directly determine cost competitiveness
Importantly, this divergence is not a short-term phenomenon. As the chemical fiber industry continues to grapple with overcapacity and downstream demand growth slows, such sales dispersion will become the new normal. Enterprises need to adjust their operational strategies rather than hoping for a broad-based market rally.