Weekly Average Up Only 0.07%, Yet Year-on-Year Gains Double: How Long Can Polyester Staple Fiber and PTA Strength Last?

The weekly average moved just 0.07%, yet the year-on-year figures tell two completely different stories: polyester staple fiber is up 35.44% year-on-year, PTA is up 59.46%, while cotton gained only 16.92% and raw silk remains in negative territory. This divergence between weekly and annual data signals that the textile raw material market is at a point of "high-level consolidation with internal differentiation." Buyers cannot rely on a single week's movement to plan restocking.

Where Does the Polyester Chain's Strength Come From?

Polyester staple fiber started the week at 8,635.08 yuan/ton and ended at 8,690.58 yuan/ton, a modest 0.64% weekly gain. But the 35.44% year-on-year increase reveals that its price center has been substantially raised over the past year. PTA rose from 7,293.50 yuan/ton to 7,327.25 yuan/ton over the same period, with a 59.46% year-on-year jump—the strongest annual expansion in the textile sector. Upstream PX and crude oil cost transmission, combined with high polyester operating rates, have jointly supported this rally.

Notably, polyester POY, DTY, and FDY quotes were all flat for the week, yet their year-on-year gains reached 36.19%, 31.11%, and 37.36% respectively. This means polyester filament mills, facing high raw material costs, chose to "lock prices and protect margins" rather than cut prices to chase orders. For downstream weaving enterprises, stable high raw material costs mean fabric costs are unlikely to fall in the short term; profit recovery can only come from order structure optimization or differentiated products.

Weak Signals from Cotton and Acrylonitrile

Cotton edged down from 17,421.00 yuan/ton to 17,408.33 yuan/ton, a mere 0.07% weekly decline, but still up 16.92% year-on-year. This indicates that although cotton prices have slightly loosened from highs, they have not entered a downtrend. The pace of new cotton arrivals, reserve cotton rotation policies, and downstream spinning mill purchasing intentions are the key variables determining cotton's next direction.

Acrylonitrile fell 0.46% week-on-week but rose 35.07% year-on-year. This combination of "high annual gain, weak weekly move" typically means the market is in a digestion phase after excessive earlier gains. For the acrylic fiber and carbon fiber supply chain, the acrylonitrile pullback helps ease cost pressure, but the high year-on-year base means downstream product prices have limited room for significant cuts.

Raw silk rose 0.20% for the week but remains down 4.65% year-on-year, one of the few textile commodities with negative annual growth. Recovery in cocoon supply, weak export orders, and competition from substitute fibers have jointly suppressed silk prices. For silk exporters, the current weakness actually provides a window to lock in raw material costs.

Impact on Industrial Clusters and Trade

Weaving enterprises in chemical fiber fabric clusters such as Keqiao and Shengze currently face a squeeze: raw materials won't fall, but grey fabric prices struggle to rise. Polyester filament prices are up over 30% year-on-year, yet terminal apparel orders have limited bargaining power, continuously compressing intermediate margins. Some mills have shifted to recycled fibers or differentiated yarns to avoid price wars in conventional varieties.

The Nantong home textile cluster is more sensitive to cotton yarn prices. Cotton yarn 32S rose 0.20% for the week and 5.52% year-on-year, while 21S gained 6.04% annually—relatively moderate increases. Home textile enterprises focused on cotton products face less cost pressure than their chemical fiber peers, but should watch whether cotton prices weaken further after new crop arrivals, potentially bringing yarn price relief.

On the export side, the sharp year-on-year gains in PTA and polyester staple fiber mean USD-denominated chemical fiber fabric export quotes face upward pressure. However, overseas buyers' acceptance of price hikes depends on terminal retail performance. If European and American apparel retail inventories remain elevated, buyers may delay orders or shift to other suppliers, requiring exporters to hedge currency and raw material costs in advance.

Actionable Recommendations

For Buyers - For polyester staple fiber and PTA-related varieties, avoid large one-time restocking; adopt phased price-locking strategies to reduce high-level correction risk. - Monitor weekly cotton and cotton yarn changes; if cotton weakens for two consecutive weeks, consider moderately delaying cotton material procurement. - Raw silk remains negative year-on-year; silk buyers may consider building partial forward inventory at current levels.

For Mills - Chemical fiber weaving enterprises should accelerate the share of differentiated products, as conventional polyester fabric margins are severely squeezed by raw material costs. - Cotton spinning mills must closely track new cotton arrival progress and reserve policies, adjusting cotton blending plans in advance to control costs. - For acrylonitrile downstream enterprises, the weekly decline is a short-term positive, but high annual levels mean long-term cost pressure persists; locking quarterly volumes is recommended.

For Exporters - Chemical fiber fabric export quotes should reserve space for raw material volatility to avoid margin erosion if PTA and polyester staple fiber continue rising. - When communicating with overseas clients, use year-on-year data to justify price increases, but assess their inventory and terminal demand capacity. - Watch currency-commodity linkage; if the RMB strengthens alongside high raw material prices, export margins face dual pressure.