Polyester Staple Fiber Benchmark Price Nears Annual High, Industry Pricing Logic Shifting

On August 28, 2026, the benchmark price of polyester staple fiber (PSF) settled at 7744.82 yuan/ton, up 2.37% from the beginning of the month, positioning at a mid-to-high level within the past year. This figure reflects a confluence of raw material costs, supply-demand dynamics, and inventory cycles, rather than mere seasonal fluctuation. For downstream spinning mills, this signals a shift in procurement strategy from hand-to-mouth buying to opportunistic stockpiling, while exporters face a narrowing window for cost pass-through in quotations.

Rising Price Center: Insights from the Annual Range

Over the past 12 months (August 2025 – August 2026), PSF prices fluctuated between a low of 6267.17 yuan/ton and a high of 8426.02 yuan/ton, with an average of 7113.31 yuan/ton. The current price sits only 681.2 yuan/ton below the annual peak and 1477.65 yuan/ton above the trough. This indicates the market has moved away from the bottom but has not yet entered an overheated phase. The mid-point of 7346.6 yuan/ton has been effectively breached, suggesting a systematic upward shift in the price center, not just a temporary spike.

Month-to-date, prices rose from 7565.33 yuan/ton at the start of August, then retreated slightly by 0.82% at month-end. This 'rise-then-fall' pattern reflects limited market acceptance of high prices, yet strong underlying support. For buyers, the current price zone offers limited bargaining room compared to early August, requiring closer attention to supplier inventory and order cycles.

Industrial Transmission: Cost vs. Demand

PSF price movements are primarily driven by upstream PTA and MEG costs. Over the past year, higher crude oil prices have lifted the entire polyester chain. Despite a slight daily decline at the end of August, the monthly gain of 2.37% indicates that cost support remains intact. Meanwhile, downstream yarn mills maintain high operating rates, underpinning rigid demand for PSF.

Notably, the current price is at a 'mid-to-high' rather than 'high' level, suggesting no panic buying or significant inventory destocking pressure. This balanced state is beneficial for the supply chain—upstream enjoys margins, downstream can absorb costs. However, any sharp fluctuation in crude oil could shift PSF pricing logic from cost-driven to sentiment-driven, amplifying volatility.

For spinning factories, raw material costs account for roughly 70% of production costs; a 100 yuan/ton increase in PSF raises yarn costs by about 80 yuan/ton. Therefore, during a rising price center, mills must manage raw material inventory more precisely to avoid concentrated replenishment at price peaks.

Practical Recommendations

For Buyers - Monitor monthly average price trends; if prices pull back below 7400 yuan/ton, consider it a phased restocking window, but align with your order cycle to avoid overstocking. - When signing quarterly contracts, use the annual mid-point (7346 yuan/ton) as a benchmark and negotiate floating pricing terms to mitigate unilateral upside risk. - Track crude oil and PTA futures closely; if crude drops more than 3% in a day, PSF prices are likely to follow, so wait until the next day to negotiate.

For Exporters - In export quotations, adopt a 'raw material cost + processing fee + profit' formula and specify a price validity period (e.g., 15 days) to hedge against material fluctuations. - For orders with delivery times exceeding 60 days, consider negotiating price adjustment clauses or hedging raw material costs via futures to protect margins. - Monitor the correlation between RMB exchange rates and PSF prices; if both move in the same direction, adjust USD quotations accordingly to maintain competitiveness.