International crude oil prices have fallen below the $80 mark, with Brent recording its largest weekly drop in years. The news that transit efficiency through the Strait of Hormuz has improved by 30% is triggering a chain reaction across the global textile supply chain. For chemical fiber enterprises, this means a phased easing of raw material cost pressure, but it also hides new supply chain uncertainties.
Event Background
On August 5, Iran and Oman reached a preliminary agreement on shipping through the Strait of Hormuz, closing the traditional dual lanes that had been in use for over 60 years and diverting commercial vessels to a new temporary route through Iranian territorial waters. This adjustment increased transit efficiency by 30%, and crude oil freight rates plummeted by 22% in a single week, with Brent closing at $79.45 per barrel. Previously, due to geopolitical conflicts, Brent had surged above $110, and the market risk premium has now been rapidly priced out.
However, traffic volumes remain far below normal levels. Under normal conditions, the Strait of Hormuz sees 130 to 140 commercial vessels pass daily, carrying nearly 30% of global seaborne crude oil and 20% of LNG exports. Currently, daily transits have not exceeded 60 vessels, with many tankers still diverting around the Cape of Good Hope, extending shipping times and raising logistics costs. This means that despite the positive signal from the route adjustment, full recovery of strait capacity will take time.
Industry Impact
For the textile and chemical fiber industry, lower crude oil prices directly reduce production costs for petrochemical feedstocks such as PTA and MEG. PTA prices are highly correlated with oil; for every $10 drop per barrel, the theoretical cost of PTA decreases by about 80 to 100 yuan per ton. With Brent now below $80, down nearly $30 from its peak, there is significant room for chemical fiber raw material costs to decline.
However, buyers must be wary of time lags and uncertainties in cost transmission. First, the new navigation rules are still being refined, with details such as 72-hour advance reporting and onboard inspections yet to be officially released. A large-scale return of tankers is unlikely in the short term, and Middle East crude supply cannot recover quickly. Second, the Red Sea route continues to face attack risks, putting two major global energy chokepoints under simultaneous pressure, creating a structural gap in seaborne crude supply. Finally, Asian refineries heavily depend on Middle East crude; US and Russian oil can only serve as supplements, leaving the medium- and long-term supply-demand balance tight.
Spot markets have already reacted: Middle East crude discounts are weakening, some Asian refineries are postponing long-term procurement and temporarily increasing purchases from the Americas and Russia, and downstream petrochemical feedstock costs are falling in phases, but no large-scale bargain hunting has occurred. For textile companies, this suggests raw material prices may enter a "low-level fluctuation" range rather than a one-way decline.