International crude prices fell below the $80 mark, and crude freight rates plunged 22% in a single week—the fundamental adjustment of shipping mechanisms in the Strait of Hormuz is transmitting through the energy cost chain to the textile chemical fiber industry. For categories such as PTA and polyester filament, which rely on petroleum as upstream raw material, this represents both a short-term procurement window and a source of volatility to be wary of.
Event Background
On August 5, Iran and Oman reached a preliminary agreement on commercial vessel passage through the Strait of Hormuz, closing the dual north-south shipping lanes used for over 60 years and redirecting merchant ships to a new temporary route through Iranian territorial waters. According to Iranian Deputy Foreign Minister Garibabadi, the agreement is near finalization, with supporting rules involving 72-hour advance online reporting, onboard verification, and tiered transit service fees, to be released alongside the formal agreement.
Current transit volumes remain low, with daily vessel passages around 60, far below the normal 130-140. Many tankers are rerouting via the Cape of Good Hope, extending voyage times and driving up logistics costs across the chain. This means that even with the new route operational, a full recovery of shipping capacity will take time, and short-term supply of Middle East crude exports cannot be quickly restored.
Industry Impact
Lower crude prices directly reduce costs for upstream chemical fiber raw materials like naphtha and PX. Brent crude fell from above $110 to $79.45, with WTI closing at $75.22, as geopolitical risk premiums were quickly unwound. For chemical fiber enterprises, this weakens cost support for PTA and polyester; if downstream demand does not recover in tandem, prices may face downward pressure.
However, multiple agencies suggest limited room for further oil price declines: the Red Sea shipping risk persists, keeping two major energy chokepoints under pressure; Asian and European refiners remain heavily reliant on Middle East crude, with US and Russian oil serving only as supplements, not full substitutes. Thus, chemical fiber raw material costs may show a pattern of 'short-term decline, medium-term oscillation,' and companies should avoid overcommitting to one-directional bets.
On the spot market, some Asian refiners have paused Middle East crude purchases and shifted to American and Russian sources, reducing spot trading activity. For chemical fiber plants, this means a temporary drop in procurement costs, but supply chain switches may bring uncertainties in quality and delivery rhythm, requiring careful supplier stability assessments.