At 8,596.75 yuan per ton, polyester staple fiber has reached a benchmark that few in the industry would have predicted a year ago. According to China Customs and publicly available industry data, the benchmark price rose nearly 10% from the start of September, with a daily gain of 1.53%. It now sits just 241 yuan below the annual peak, while the floor has been lifted by more than 2,300 yuan. This is not a gentle climb; it is a rapid revaluation.
Three Forces Behind the Price Surge
On the cost side, PTA and monoethylene glycol, the core raw materials for polyester staple fiber, strengthened simultaneously in late Q3, directly pushing up polymerization costs. Maintenance seasons at upstream refining units, combined with crude oil volatility, have repeatedly squeezed the spot margins of fiber producers. Some small and medium-sized polymerization plants are even facing negative cash flow. This means the current price rally is not purely demand-driven but a passive pass-through of cost pressures.
Supply-side contraction is equally critical. Public industry data shows that several staple fiber plants in East China arranged production cuts or switched to differentiated products in September, reducing standard-grade supply month-on-month. When social inventories are at mid-to-low levels, any disruption is amplified into price elasticity.
Demand shows a dual pattern of rigid restocking and speculative stockpiling. Downstream yarn mills and filling material producers, fearing further price increases, are locking in orders ahead of time, intensifying spot market tightness.
Transmission Through Industrial Belts: Who Bears the Burden, Who Benefits
The reaction in fabric clusters such as Keqiao and Shengze is most direct. Polyester staple fiber is a key input for blended yarns, sewing threads, nonwovens and filling cotton. Its price fluctuations transmit to grey fabric and finished fabric quotes within two to three weeks. For factories relying heavily on staple fiber, accepting orders without prior hedging or price locking now means compressed margins or even losses.
The Nantong home textile belt feels similar pressure. Filling-type home textile products are highly sensitive to staple fiber prices, and some export order quotes have seen validity periods shortened from 30 days to 7-10 days. If buyers still insist on quarterly price locks, they may face supplier rejections or demands for price increases.
In contrast, integrated giants with self-sufficient raw materials and scale advantages are expanding their relative edge during this rally. Industry profits are shifting from downstream processing to upstream polymerization and integrated players, a trend likely to strengthen after overprice warnings appear.
What the Overprice Warning Means
It is worth noting that current prices have triggered two-year and three-year overprice warnings. Historical experience shows that when staple fiber enters this range, the market either corrects through negative demand feedback or digests gains through prolonged sideways trading. For traders, the risk of chasing highs is accumulating; for factories, blind capacity expansion also requires caution.
From a macro perspective, profit redistribution in the textile chain is not a zero-sum game. Rising prices accelerate the exit of outdated capacity and push the industry toward differentiated and functional fibers. In the short term, however, cash flow pressures on SMEs cannot be ignored, especially those with neither raw material inventories nor bargaining power.