Polyester Staple Fiber Price Stabilizes at Mid-Range, Supply Chain Enters Critical Phase

The benchmark price of polyester staple fiber (PSF) settled at 7511.33 yuan/ton on July 30, 2026, up 1.25% from the beginning of the month's 7418.65 yuan/ton. The daily increase of only 0.17% points to a narrow-range consolidation. This price sits at the mid-point of the past year's band, which ranged from a low of 6267.17 yuan/ton to a high of 8426.02 yuan/ton, with a median of 7346.6 yuan/ton. The current level is 914.69 yuan below the peak and 1,244.16 yuan above the trough, indicating no significant deviation from equilibrium.

Supply-Demand Dynamics Behind the Mid-Range Price

The prolonged mid-range price reflects a tug-of-war between upstream and downstream forces. On the supply side, raw material costs for PTA and ethylene glycol have remained stable recently, providing a floor for PSF. However, downstream textile mills are purchasing cautiously, mostly for immediate needs, with little appetite for stockpiling. This 'ceiling and floor' pattern prevents prices from breaking out of the year-long range. The annual average of 7024.15 yuan/ton suggests the current price is about 6.9% above the mean, indicating mild optimism but not overheating.

For mills, the current price level calls for refined procurement strategies. With a theoretical downside of about 16.6% to the trough, actual declines may be limited by rigid raw material costs. Conversely, if demand picks up, the potential upside to the peak is about 12.2%.

Regional and Product Transmission Effects

The sideways price trend sends mixed signals to key textile clusters like Shengze, Keqiao, and Nantong. Chemical fiber fabric mills generally adopt a 'produce-to-order' approach, keeping inventory at 15-20 days. Stable PSF prices alleviate cost anxiety but also limit the potential for excess profits from cheap inputs. In home textiles, slow end-consumer recovery keeps firms maintaining low raw material inventories, waiting for lower prices.

In terms of product substitution, PSF competes with cotton-based yarns and blended fabrics. With cotton prices currently low, some spinners are adjusting blend ratios to reduce polyester usage. If this trend continues, it could suppress PSF demand and push prices toward the lower end of the range.

Practical Recommendations

For Buyers - Purchase based on immediate needs; avoid bulk buying on short-term fluctuations. Set a price alert for strategic replenishment if PSF falls below 7,000 yuan/ton. - Monitor upstream PTA plant maintenance schedules; supply tightening could provide short-term support, justifying increased buying. - Negotiate floating-price contracts with suppliers to limit risk exposure.

For Exporters - Use the annual average of 7,024 yuan/ton as a cost baseline for export quotes, rather than the spot price, to hedge against currency and shipping cost changes. - Track Southeast Asian textile capacity recovery; rising local demand could boost Chinese PSF exports and support prices. - Include price adjustment clauses in L/C terms to allow renegotiation in case of significant raw material price swings.