Within just two days, quoted prices for polyester filament yarn in Changshu rose almost across the board, with mainstream specifications climbing 100 to 300 yuan per tonne. Bright trilobal variants posted the steepest gains. The driver was not order flow but a sharp rally in polyester feedstock. For weaving mills, the gap between rising raw material costs and lagging finished-goods price pass-through is widening.
Structural Features of the Price Move
Industry public data show that the September 8-10 adjustments covered both FDY and DTY categories. Among regular FDY items, 68D/24F rose from 10,000-10,050 yuan per tonne to 10,200-10,250 yuan per tonne, while 150D/96F gained 200 yuan per tonne to 9,600-9,650 yuan per tonne. Bright trilobal products saw even larger increases, with 50D/24F and 50D/36F both up 300 yuan per tonne to 10,400-10,450 yuan per tonne.
On the DTY side, 75D/36F climbed from 11,000 to 11,200 yuan per tonne, and 150D/144F fixed-weight items rose 300 yuan per tonne to 10,700 yuan per tonne. Notably, 200D/96F fixed-weight yarn from one Zhejiang supplier held flat at 10,250 yuan per tonne, a rare exception to the broad upward trend.
This structural divergence suggests the rally is not a demand-driven across-the-board move but an uneven transmission of cost pressure across specifications. Fine-denier and bright trilobal products are more sensitive to feedstock prices and saw larger hikes, while coarser regular items followed more modestly due to inventory and competitive dynamics.
Cost Push Versus Absent Demand
The immediate trigger was strengthening polyester feedstock prices. The upstream rally quickly transmitted to the filament yarn segment, but downstream weaving and texturing enterprises showed limited willingness to accept the increases. Market feedback indicates that sales volume did not expand meaningfully after the price hikes, suggesting end-user orders have not yet recovered in tandem.
For buyers, current prices are at a阶段性 high, raising the risk of chasing the market. For mills, higher feedstock costs are squeezing processing margins, and if they cannot pass costs downstream, operating enthusiasm may suffer. As a key distribution hub for polyester filament, Changshu's price signals carry benchmark significance for the Jiangsu-Zhejiang weaving belt.
From a supply chain transmission perspective, cost-push rallies without demand support tend to feature fast rises and slow declines. The restocking willingness of intermediate traders and the raw material procurement pace of texturing plants will determine whether short-term gains can hold.
Chain Reactions Across Industrial Belts
Filament and texturing capacity is highly concentrated in Changshu, Taicang, Xiaoshan, and Tongxiang, creating strong price linkages. In this round, major suppliers including Rongsheng, Tongkun, Xinfengming, and Hengyi moved quotes in tandem, reflecting the broad-based nature of feedstock cost pressure across the industry.
For downstream weaving clusters such as Shengze and Keqiao, higher raw material costs will directly compress grey fabric margins. If fabric quotes cannot be raised in step, weavers may respond by cutting operating rates or adjusting product mix. On the export side, if exchange rates and ocean freight remain stable, the pass-through of cost increases to export quotes will lag by one to two procurement cycles.