International crude oil prices retreated sharply after briefly surpassing $100 per barrel, triggering a single-day drop of over 5% in PTA futures. Several polyester plants responded by cutting filament yarn prices by 50-100 yuan per ton. The immediate trigger is the market's short-term easing of geopolitical risk premiums, but the deeper issue lies in the dysfunctional price transmission mechanism along the chemical fiber chain—each upstream 'concession' fails to translate into downstream profitability.
The 'Fakeout' of Oil Price Drop and the Truth of Raw Material Pricing
Crude oil fell from around $100 to the $90 range, seemingly reflecting the removal of geopolitical risk premiums. However, the correlation between PTA and crude has dropped below 0.6 in 2025, according to publicly available data from China's National Bureau of Statistics. Pricing power now rests more with oligopolies in the PX and PTA segments.
The price cuts by polyester plants resemble a 'probing promotion'—some filament yarn grades saw reductions of only 50-100 yuan per ton, or 1%-2%, far less than the 6% daily drop in crude. This suggests upstream players do not expect a sustained single-direction decline in oil prices, instead using short-term volatility to clear inventory and test downstream absorption capacity.
Dyes and Dyeing Fees: Accelerator and Buffer in Cost Transmission
Disperse black dye has seen two price hikes within a month, totaling 5,000 yuan per ton, directly inflating dyeing mill costs. Dyeing mills in Shaoxing have raised fees effective August 1: light-to-medium shades up 100-300 yuan per ton, dark shades up 300-500 yuan per ton.
The pricing logic in the dye segment mirrors that of polyester filament—several leading companies control over 70% of disperse dye capacity, giving them strong bargaining power. Weaving mills and dyeing plants sit in the middle of the chain, unable to hedge against rising dye costs or fully pass them on to downstream apparel brands. This 'sandwich layer' dilemma is particularly acute in the 2025 off-season: weak end-demand means any fee hike risks customer loss or order shrinkage.
Operating Rates: A 'Cold Equilibrium' Between Supply and Demand
Industry data reveals the true temperature of the chain:
- Domestic polyester filament operating rate: 74.39%
- Jiangsu-Zhejiang texturing machine utilization: 61.93%
- Weaving machine utilization: approximately 50%
Polyester plants maintain low operating rates to control supply and stabilize prices; downstream weavers operate even lower rates, achieving near-balanced production and sales with no active restocking appetite. Both sides have reached a 'cold equilibrium': upstream won't cut prices, downstream won't buy.
More notably, production costs for most basic fabrics are already inverted. For weaving mills, a price swing of 200-300 yuan per ton no longer drives decisions. Production cuts and shutdowns—buying time—have become industry consensus. This 'lying flat' response further weakens polyester plants' incentive to cut prices: even promotions fail to generate effective demand.
The 'Long Tail' of Middle East Tensions and Oil's Volatility Logic
On the geopolitical front, U.S.-Iran uncertainty remains the core variable for crude prices. Although the U.S. faces short-term ammunition constraints and has suspended military escalation, the risk of Strait of Hormuz disruption persists. As long as the threat of blocked oil tanker passages exists, crude prices are unlikely to see a sustained downturn.
Moreover, the eroded trust between the two sides means a lengthy new negotiation cycle, during which oil prices will likely remain high and volatile. The unpredictability of Trump administration policies further clouds market judgment—today's de-escalation signal could be overturned by tomorrow's hawkish stance.