On July 7, the average sales-to-production ratio of domestic polyester filament yarn sample enterprises plummeted to 42.9%, a sharp drop of 29 percentage points from the previous trading day. This figure not only breaks the recent fluctuation range but also reveals the true attitude of downstream weaving mills towards raw material procurement—buying sentiment has reached an ice point.
Supply-Demand Signals Behind the Data
Looking at the distribution of publicly disclosed sales data from sample enterprises, over 70% of companies reported ratios between 20% and 45% on that day. Only a handful achieved a 200% ratio through discounting. This indicates that even with price concessions, the market failed to stimulate effective demand. Industry data has historically shown that when the sales-to-production ratio stays below 60% for consecutive days, inventory accumulation becomes inevitable—exactly the situation facing the polyester filament yarn sector.
Notably, this plunge occurred without a simultaneous sharp decline in downstream weaving machine utilization rates. This suggests the issue lies not in absolute contraction of end-consumption but in a fundamental shift in inventory strategy: weaving mills are actively destocking rather than passively cutting output.
Price Expectations and Buying Psychology
The pricing mechanism for polyester filament yarn is highly transparent, with a bidirectional feedback loop between price and sales ratio. When the ratio stays low, mills face a dilemma: holding prices risks further inventory buildup, while aggressive discounting may trigger deeper wait-and-see behavior downstream, creating a negative spiral of "the more prices fall, the less people buy."
From the cost side, upstream PTA and MEG prices have remained range-bound recently, without violent fluctuations. This means the sales ratio decline is not cost-driven but reflects downstream rejection of current price levels. Buyers generally expect further price declines and thus prefer to maintain low inventory turnover rather than purchase at perceived highs. This "buy on rising, not on falling" psychology is amplified during the early July off-season.
Transmission Effects Across Industrial Belts
Jiangsu and Zhejiang provinces—home to clusters like Shengze, Changxing, and Xiaoshan—are the core hubs of China's polyester filament yarn industry. Weaving mills in these regions typically sign monthly or quarterly supply agreements with yarn producers. However, when market sentiment turns bearish, contract execution rates drop significantly. On July 7, some mills reported ratios as low as 10% to 20%, likely indicating that local weaving mills are reducing contractual offtake and consuming their own inventories.
Similarly affected are warp knitting and circular knitting clusters in Fujian and Guangdong, which mainly produce garment fabrics and home textiles. The recovery of end-order volumes in these regions has been slower than expected. The sharp drop in polyester filament yarn sales ratio is essentially an intermediate signal of weak final consumption transmitting upstream, not an isolated event.
Practical Recommendations
For Buyers - Maintain routine raw material inventory at 7-10 days of consumption during the current buyer's market; avoid stockpiling in a price downtrend. - Monitor inventory days of polyester filament yarn mills; if industry-wide inventory exceeds 25 days, consider phased procurement but keep each order within 15 days of consumption. - Negotiate floating pricing clauses with suppliers, linking settlement prices to publicly available market averages to reduce unilateral volatility risk.
For Foreign Trade Companies - Build price fluctuation buffers into export quotations; consider adopting "raw material price adjustment clauses" to lock in cost floors. - Track polyester filament yarn import prices in Southeast Asian and South Asian markets; if the domestic-international price gap widens, explore optimizing procurement costs through triangular trade. - Use the current low domestic raw material price window to sign forward fixed-price contracts with overseas clients, securing profit margins in advance.
Overall, the cliff-like drop in the polyester filament yarn sales ratio on July 7 is not an isolated market fluctuation but a clear signal that the industrial chain's inventory cycle is shifting from active replenishment to passive accumulation. Until end-demand shows substantive recovery, this sluggish state may persist through the mid-to-late third quarter.