WTI Crude Surges 7% in a Single Day: New Cost Pressures Loom for Textile and Chemical Fiber Sector

WTI crude oil surged as much as 7% intraday on July 29, with Brent crude also climbing above $87 per barrel. This oil price shock, triggered by a sudden escalation of geopolitical tensions in the Middle East, has upended the cost baseline for the entire polyester supply chain in the textile industry.

Background

Early on July 29, Iran launched multiple ballistic missiles at a U.S. military base in Jordan. The U.S. Central Command confirmed all missiles were intercepted. The attack came after a de facto ceasefire between the U.S. and Iran collapsed, signaling a renewed military confrontation. Hours before a Federal Reserve decision, President Donald Trump publicly threatened retaliatory strikes against Iran, further fueling market panic.

WTI crude started at $79.5 per barrel, breaking through $80, $81, and $82 before hitting an intraday peak of $83.7, a 7% gain. Brent crude followed suit, reaching $87.3 per barrel, up 6.5%. Analysts at UBS pointed to the resumption of military strikes and renewed Iranian threats to disrupt shipping through the Strait of Hormuz as the primary drivers.

Industry Impact

High oil prices transmit quickly to the textile sector. PTA and ethylene glycol, key feedstocks for polyester filament and staple fiber, are highly correlated with crude. Industry data from 2025 shows that every $10 per barrel increase in crude raises PTA production costs by about 800 yuan per ton. The single-day jump of nearly $5.8 per barrel implies a cost increase of over 400 yuan per ton for polyester raw materials.

This comes at a critical time when the traditional peak season for textiles—September and October—is approaching. Jiangsu and Zhejiang weaving mills are running at around 70% capacity, with grey fabric inventories at moderate levels. The sudden cost spike will compress margins for weavers. For fabric traders with fixed-price orders, failure to lock in raw material costs could wipe out profits.

Brent crude is expected to fluctuate wildly in the $80–$100 range over the near term, according to DBS Bank. This means cost uncertainty for chemical fibers will persist for weeks. Polyester filament, staple fiber, and chips will likely follow raw material prices upward, but apparel brands may resist fabric price hikes, creating a tug-of-war along the supply chain.

Practical Advice

For Buyers - Monitor PTA and ethylene glycol futures closely. If futures rise more than 3% for two consecutive days, consider signing short-term price guarantee agreements with suppliers to lock in current levels. - For autumn/winter fabric orders due before November, include raw material price fluctuation clauses in contracts, with a renegotiation trigger (e.g., when cumulative crude increase exceeds 5%). - Prioritize sourcing fabrics made from recycled polyester or non-petroleum-based fibers like cotton to hedge against crude volatility.

For Mills - Increase spot inventory of polyester raw materials moderately, but keep it under 30 days of usage to avoid devaluation if oil prices retreat. - Communicate crude cost changes proactively with downstream customers, and propose a “floating raw material fee” model in grey fabric quotes to share risk. - Monitor price spreads between polyester staple fiber and viscose or cotton. If polyester becomes too expensive, guide customers to switch to alternative fibers.