Every textile raw material hit pause on September 25, 2026 — daily price changes across the board registered exactly zero. Such a synchronized flatline is unusual in the textile commodities market, particularly when year-on-year figures reveal dramatic divergence. Cotton stood at 17,399.17 yuan per ton, up 15.18% year-on-year. PTA was quoted at 7,147.50 yuan per ton, a staggering 54.21% annual gain. Acrylonitrile reached 10,933.33 yuan per ton, up 36.10%. Yet raw silk, at 435,600 yuan per ton, fell 6.17% — the sole significant decliner on the board.
Divergence Beneath the Flatline
Zero daily movement conveys no directional information by itself, but the structural differences in year-on-year data demand scrutiny. The chemical fiber chain has clearly outpaced natural fibers. Polyester staple fiber rose 33.75% year-on-year, polyester POY 34.96%, polyester DTY 31.46%, polyester FDY 35.80%, and nylon POY 38.88%. This means that over the past year, the cost escalation in petroleum-based synthetic fibers has far exceeded that of cotton and viscose.
Viscose staple fiber gained 11.13% year-on-year, rayon yarn 6.97%, cotton yarn 21S and 32S rose 5.89% and 5.31% respectively, and cotton lint 15.18%. Natural and regenerated fiber gains cluster in the single-digit to low-double-digit range, in sharp contrast to chemical fibers' 30%-plus increases.
Spandex rose 19.59% year-on-year, occupying a middle ground. This divergence is materially affecting formulation choices at downstream fabric mills — when polyester raw material costs have risen over 30% annually while cotton gains are half that, recalculating blend ratios is no longer theoretical.
Cost Transmission and Capacity Cycles
PTA's 54.21% year-on-year surge is the most striking figure on the board. As the upstream anchor of the polyester chain, PTA's sharp rise means every stage from polymerization to spinning has passively absorbed cost pressure. The three major polyester filament varieties — POY, DTY, and FDY — show highly consistent year-on-year gains between 31% and 36%, indicating that cost transmission within the filament segment is complete and the spread structure across varieties remains stable.
The nylon chain exhibits similar transmission characteristics. Nylon POY rose 38.88% year-on-year, FDY 26.55%, and DTY 29.83%. POY's gain exceeding downstream products suggests profit margins from chip to spinning are being compressed, and texturing margins may be approaching breakeven.
Acrylonitrile's 36.10% annual increase points to downstream acrylic and carbon fiber applications. For factories using acrylonitrile as feedstock, current price levels mean raw material inventory management has superseded processing profit as the primary concern.
Raw silk's year-on-year decline is the sole contrarian signal. At 435,600 yuan per ton, the price is 6.17% lower than a year ago, potentially reflecting recovering cocoon supply or weakening silk end-demand. For silk weaving enterprises, current prices offer a rare cost window, though single-variety counter-trend declines often accompany subsequent supply uncertainty.
Practical Implications for Procurement and Production
When all varieties' daily prices simultaneously flatline, the market is effectively at a wait-and-see juncture. Both buyers and sellers await new directional signals, and the divergence in year-on-year gains — not the zero daily change — is the variable that truly shapes decisions.
For procurement teams, substantial year-on-year increases in chemical fiber raw materials mean annual procurement budgets require recalibration. If enterprises locked in long-term contract prices in 2025, the gap between current spot prices and contract prices may already represent significant arbitrage opportunities or performance pressure.
For factories, raw material divergence maps directly onto product mix adjustments. Polyester fabric production costs have risen far more than cotton-based fabrics, potentially shifting some orders from synthetics to cotton blends. But the shift carries costs — cotton yarn prices are also rising, just less steeply.
For export enterprises, year-on-year raw material cost changes must be evaluated alongside currency fluctuations. If yuan-denominated raw material gains are partially offset by exchange rate movements, actual export quote adjustments may be smaller than expected. But if exchange rates remain stable, chemical fiber product export quotes face passive upward pressure.
For Procurement Teams
- Recalculate annual procurement budgets for chemical fiber raw materials, focusing on how PTA and acrylonitrile gains push costs across polyester, nylon, and acrylic chains
- Assess the deviation between long-term contract prices and current spot prices; if the gap is significant, consider adjusting lock-in ratios or negotiating room
- Monitor the raw silk counter-trend window; enterprises needing silk materials may moderately increase spot purchases
For Factories
- Recalculate polyester-cotton blend formulation costs; with chemical fiber gains exceeding 30%, minor blend ratio adjustments could yield meaningful savings
- In nylon texturing, watch for margin compression from narrowing POY-DTY spreads; communicate processing fee adjustments with downstream customers early
- Acrylonitrile downstream enterprises should improve raw material inventory turnover efficiency to reduce capital occupation at elevated prices
For Export Enterprises
- Combine raw material year-on-year gains with exchange rate movements when calculating export quotes to avoid distortion from single-factor analysis
- For chemical fiber product orders, include explicit raw material price adjustment clauses in quotes to reduce subsequent performance risk
- Monitor price competitiveness changes in raw silk and silk product exports; year-on-year declines may present阶段性 order opportunities