On the morning of August 3, international oil prices opened sharply lower, with Brent crude for October delivery falling as much as 7.3% to $81.55 per barrel, while WTI also dropped below $80. However, this violent upstream fluctuation did not stir an equivalent reaction in the polyester filament market—prices only edged down, sometimes remaining flat. This contrast reveals a deeper shift: the pricing anchor for textile raw materials is moving from crude oil costs to downstream supply-demand dynamics.
Background
The immediate trigger for this oil price slump was geopolitical rhetoric. On July 31, signals emerged from the U.S. about a possible strike on Iranian energy facilities, heightening market tension; but on August 2, a sudden announcement of upcoming negotiations with Iran suggested a possible agreement on the Strait of Hormuz. Such volatile "verbal interventions" have repeatedly dominated short-term oil movements, and speculative funds have often followed suit.
Notably, despite the oil market's sharp reactions to geopolitical news, polyester filament has shown rare independence. Since the previous U.S.-Iran conflict, whether oil prices surged or crashed, filament prices have maintained a modest daily fluctuation of 50-100 yuan per ton, barely influenced by cost-side swings. This decoupling is not coincidental but reflects structural changes within the industry chain.
Industry Impact
The "desensitization" of filament prices stems from persistently weak downstream demand. Currently in the traditional off-season, weaving mill operating rates are below 50%, and many enterprises lacking stable orders have reduced or halted production. In this context, raw material purchases are mainly for essential replenishment, and minor price fluctuations do little to stimulate additional demand. In other words, cost-side volatility has been offset by weak demand, and pricing power is gradually shifting to supply-demand fundamentals.
Another key variable is inventory structure. The large-scale production cuts in the first half of the year have reduced average grey fabric inventories by more than ten days compared with the same period last year. This destocking means that once downstream demand picks up, the market could quickly shift from a buyer's market to a seller's market—grey fabric prices often rise ahead of inventory depletion due to hoarding sentiment.
For buyers, the current combination of low inventories and low operating rates implies that price elasticity is building. If demand recovers as expected in late August, raw material and grey fabric prices may experience a pulse-like upward movement. For upstream factories, while the "Trump-driven" oil market remains unpredictable, downstream inventory cycles are a more reliable leading indicator.