The early session on July 6 saw a broad rally in the polyester chain on China's futures market. Staple fiber futures rose 1.35% to 6884 points, a new yearly high, while PTA gained 1.82% to 5492 points and bottle-grade chip followed with a 1.07% increase. In contrast, cotton and cotton yarn posted modest gains of 0.37% and 0.24%, respectively.
Cost-Push Logic Reinforced
The rally in staple fiber was not an isolated event. As its direct upstream, PTA showed an even stronger performance, rising nearly 2%. This suggests the entire polyester chain is experiencing a cost-driven upward move. Since the start of the second half of the year, international crude oil prices have remained elevated, while paraxylene (PX) supply has been tight, directly pushing up PTA production costs. Staple fiber, as the primary downstream product of PTA, has a high cost-pass-through elasticity and reacts first to upstream price changes.
By contrast, cotton and cotton yarn lagged significantly. Cotton's main contract edged up only 0.37% to 16275 points, while cotton yarn gained 0.24% to 22780 points. This divergence reflects different demand structures between natural and synthetic fibers. The cotton market faces pressure from expected production increases in the new season and sluggish downstream order recovery, while cotton yarn mills are constrained by low operating rates at weaving factories, with end-users purchasing only for immediate needs.
Transmission to Industrial Clusters
These futures signals are transmitting clear cost messages to physical textile clusters. In polyester-dominated regions like Xiaoshan and Shaoxing in Zhejiang, spot prices for staple fiber have already started to rise, with some traders holding back inventory in anticipation of further gains. In contrast, cotton yarn mills in Shandong and Henan remain cautious, maintaining a 'sell-as-needed' strategy.
Notably, the spread between staple fiber and cotton yarn is widening. For downstream weaving mills, this may trigger a new round of raw material substitution, shifting from cotton yarn to more cost-effective polyester/cotton blends or pure polyester solutions. If this trend continues, it will directly alter buyers' material mix strategies and exert marginal pressure on cotton demand.
Outlook: Divergence to Persist
Based on open interest and capital flows, bullish sentiment dominates for staple fiber and PTA, indicating strong market expectations for further gains in the polyester chain. However, caution is warranted: the current rally is cost-driven, not demand-driven. If downstream textile and apparel orders fail to pick up as expected, price increases in the midstream and upstream may not be fully passed downstream, eventually leading to inventory buildup and price corrections.
For cotton, there are few near-term bullish catalysts. Before the new crop arrives, the market will focus on weather conditions in Xinjiang and the direction of reserve cotton auctions. Cotton yarn prices are likely to remain rangebound, awaiting tangible improvements in end-user orders.