On July 8, 2026, industry data revealed a rare signal: the average sales-to-production ratio of polyester filament yarn sample enterprises surged from approximately 42.9% the previous day to 103.6%, a single-day jump of 60.7 percentage points. This means that almost all yarn produced that day was absorbed by downstream buyers, with some enterprises even overselling.
Cost-Driven Procurement Surge
The trigger for this surge was on the cost side. From July 7 to 8, international crude oil prices strengthened continuously, directly pushing up spot quotes for PTA and ethylene glycol. For weaving enterprises that had been waiting on the sidelines, the expectation of rising raw material costs triggered a 'buy on rising prices' psychology. The 103.6% ratio indicates a sudden shift from a buyer's market to a seller's market.
More noteworthy is the structural divergence behind the numbers. Enterprise-level sales ratios varied from 10%, 40% to 200%, 300%, showing extreme disparity. High ratios concentrated in standard specifications and readily available products, while differentiated or small-batch varieties lagged. For downstream buyers, this means the restocking window is not fully open but carries a risk of product mismatch.
Inventory Cycle and Price Expectation Game
The polyester filament yarn industry experienced nearly two weeks of low sales from late June to early July, with sample enterprise ratios hovering around 40%-50% and factory inventories accumulating. The July 8 jump essentially reflects downstream weavers' passive restocking as their inventories hit bottom, amplified by cost expectations.
However, the sustainability of this pulse depends on two variables: whether crude oil prices can hold current levels, and whether end-use garment fabric orders show substantive recovery. Current industry feedback shows weaving mill operating rates have not risen correspondingly, suggesting the buying spree is primarily for raw material replenishment rather than finished orders. If costs retreat, pre-purchased inventories could suppress future demand.
For polyester plants, the 103.6% ratio temporarily eases inventory pressure, but if subsequent ratios fail to stay above 80%, destocking will slow. POY, FDY, and DTY quotes have risen 50-100 yuan/ton, but actual transaction follow-through remains to be seen.
Transmission Effects Across the Chain
This pulse has asymmetric effects. Upstream PX and PTA benefit most directly—crude oil hikes plus downstream buying boost PTA processing margins. Midstream polyester filament factories see short-term cash flow improvement, especially those with ratios above 150%. Downstream weavers and texturizers face a dilemma: chasing prices risks a correction, while waiting risks production gaps. Historical experience suggests such cost-driven buying rallies typically last 3-5 trading days before fundamentals reassert.
For exporters of polyester-based apparel fabrics, note that short-term raw material hikes may compress export margins, and overseas buyers have limited tolerance for price pass-through. It is advisable to use futures or forward contracts to lock in some raw material costs.