When Brent crude fell over 7% in a single day, polyester filament responded with only modest adjustments of 50-100 yuan per ton. This contrast reveals not just a difference in price elasticity but a fundamental shift in the operating logic of textile raw material markets. The violent swings in crude oil are being substantially buffered at the polyester stage, and downstream weaving mills have responded with almost indifferent calm.
The Blunting of Price Transmission
On the morning of August 3, international oil prices plunged, with Brent's October futures contract falling as much as 7.3% to $81.55 per barrel, while WTI dropped below the $80 threshold. However, mainstream polyester filament prices only showed minor declines, with some specifications remaining unchanged. This blunting of price transmission is not new. Since the previous US-Iran conflict ended, polyester filament has maintained an independent trajectory during wide crude oil fluctuations, rising only modestly by 50-100 yuan per day during upswings and showing strong resilience during downswings.
The weakening of price transmission indicates that pricing power within the industrial chain is shifting. Profit margins in the upstream PX-PTA segment are being continuously compressed, while polyester plants hedge against raw material volatility by adjusting operating rates. As a result, polyester filament prices now reflect their own supply-demand dynamics rather than crude oil costs. For downstream weaving mills, this price stability reduces inventory depreciation risk but also diminishes the speculative appeal of stockpiling at low prices, making procurement behavior more rational.
Supply-Demand Dynamics in the Off-Season
The traditional off-season for textiles is not yet over, with weaving mill operating rates generally below 50%. Many enterprises lacking stable orders have already reduced or halted production. Under these conditions, polyester filament purchases are essentially for immediate needs, and buyers are insensitive to small price fluctuations. However, if raw material price swings become too large, even these essential buyers may postpone purchases, further contracting market liquidity.
Notably, the large-scale production cuts in the weaving sector since the first half of the year have reduced average greige fabric inventories by more than 10 days compared to the same period last year. This destocking indicates that the market's supply-demand structure is quietly improving. Once demand recovers, greige fabric prices could react first. Historically, when inventories fall to critical levels, hoarding sentiment among mills quickly intensifies, and prices often begin to rise before the full-scale demand recovery.
The Time Window and Variables
Crude oil's short-term trajectory remains dominated by geopolitical factors, and the Trump administration's repeated reversals make it difficult for oil prices to form a sustained trend. However, the risk of blockades in the Strait of Hormuz and the Bab el-Mandeb Strait persists, significantly increasing oil transportation costs. This will gradually exacerbate energy supply shortages in some countries, providing a floor for oil prices.
For the textile industry, time is the most critical variable. The transition from late August to early September marks the shift from off-season to peak season, and downstream demand is expected to improve marginally. If crude oil prices remain elevated and volatile by then, while polyester filament stays firm due to its own tight supply-demand balance, the overall raw material price center may move upward. Conversely, if demand recovery falls short, polyester filament could face downward pressure.