Polyester Filament Yarn Sales Plummet 60%: Market Cooling After Stockpiling Pulse

On July 9, the polyester filament yarn market experienced a sharp cooldown. According to industry public data, the average sales-to-production ratio of sample enterprises stood at only 40.4%, a cliff-like drop of 63.2 percentage points from the previous trading day. Behind this figure lies the demand overdraft caused by the previous day's concentrated restocking and the true picture of terminal order absorption capacity.

Looking at the specific data distribution, the sales-to-production ratios showed extreme divergence: a few enterprises recorded highs of 120% or even 180%, but over 70% of sample firms languished in the weak range of 10% to 60%, with several as low as 10%. This 'top-heavy, long-tail low' structure means the previous day's inventory build-up did not stem from a broad recovery in end-user demand, but rather from phased bargain-hunting by some traders and weaving mills.

Industrial Logic Behind the Ratio Volatility

The sharp fluctuation in polyester filament yarn sales-to-production ratios is essentially a concentrated reflection of the supply-demand imbalance in the polyester chain. This year, upstream PTA and MEG prices have been volatile due to crude oil fluctuations, while downstream weaving and garment export order recovery has fallen short of expectations, leading to continuous inventory pressure in the intermediate links. The early July restocking was more speculative procurement triggered by temporary low prices, not a substantial pull from end consumption.

For polyester plants, a single-day drop from 103.6% to 40.4% means the inventory destocking process will slow again. If the ratio stays below 50% for a sustained period, factories may be forced to cut production or reduce prices to balance inventory pressure. For weaving mills, the digestion cycle of earlier low-cost stockpiles will lengthen, making them more cautious about subsequent raw material purchases.

Transmission Effects on Buyers and Exporters

This data fluctuation has clear transmission paths to different chain segments. For buyers, the current low ratio suggests limited upside for short-term polyester filament yarn prices, but they should be wary of price collapse risks if factories dump inventory under pressure. Exporters face a more complex scenario: slow overseas order recovery, combined with domestic raw material price swings, could erode profit margins on already-signed contracts.

From a regional industrial cluster perspective, major chemical fiber hubs like Shengze, Changxing, and Xiaoshan will directly feel the impact on their operating rates and inventory levels. If downstream weaving mills remain on the sidelines, expectations of polyester plant production cuts will gradually intensify, transmitting pressure upstream to the PTA segment.

Practical Recommendations

For Buyers - Avoid chasing high prices for restocking now; maintain a 7-10 day safety inventory and wait for the sales-to-production ratio to stabilize before purchasing. - Monitor polyester plant inventory days and operating rates; if inventory days rise for two consecutive weeks, consider phased low-price building of positions. - Prioritize suppliers with relatively stable ratios above 60%; avoid long-term contracts with suppliers experiencing extreme ratio volatility.

For Exporters - Include raw material price fluctuation clauses in export contracts to share the risk when polyester filament yarn prices change by more than 5%. - Use futures or forward price-locking tools to hedge against raw material cost volatility, preventing domestic price drops from triggering customer demands for price cuts. - Closely monitor polyester filament yarn quotes in Southeast Asia and South Asia; the current low domestic ratio may widen regional price spreads, creating opportunities for entrepot trade.