The adjustment of transit rules in the Strait of Hormuz is triggering chain reactions across the global energy logistics network, and the textile and chemical fiber industry, as a sensitive nerve ending downstream of crude oil, has already felt the loosening on the cost side. On August 5, Iran and Oman reached a preliminary agreement on shipping in the strait, closing the old dual-lane system and rerouting merchant ships to a new temporary route through Iranian territorial waters. Transit efficiency rose by 30%, and crude freight rates plunged 22% in a single week. Brent crude fell below the $80 mark, with WTI closing at $75.22 per barrel, as geopolitical risk premiums quickly dissipated. For the polyester chain, this means a phase of lower feedstock costs, but it is far from a time for complacency.
Background
This adjustment is not a simple resumption of navigation, but a fundamental replacement of the dual-lane system that has operated for over sixty years. The new temporary route mainly passes through Iranian waters, with detailed rules still under negotiation, covering 72-hour advance online reporting, onboard verification, and tiered transit service fees. Operational data shows that traffic volume remains far below normal levels: typically 130-140 merchant ships transit 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 rerouting via the Cape of Good Hope, extending voyage times and raising logistics costs across the chain.
For chemical fiber companies, this adjustment means a divergence between market expectations and physical reality. The market quickly digested risk premiums, with oil prices falling for three consecutive days, but physical capacity return has not been synchronized. Cape of Good Hope detours typically add 10-15 days to shipping schedules, directly raising landed costs, which are not fully reflected in futures prices. Therefore, Brent falling below $80 is more about sentiment repair than a fundamental shift in supply-demand dynamics.
Industry Impact
The pass-through of lower oil prices to the polyester chain is structurally uneven. PTA and MEG prices are highly correlated with crude oil, but with a time lag. On the spot market, Middle East crude discounts have weakened, with some Asian refiners postponing long-term purchases and temporarily increasing shares of American and Russian crude. This suggests that downstream PX and PTA supply costs may decline. However, the Red Sea route remains under persistent attack risks, with both major chokepoints under pressure, creating a structural gap in seaborne crude supply. US, West African, and Russian crudes can only serve as supplements, not full replacements for Hormuz volumes.
For textile companies, lower feedstock costs are positive, but they should be wary of a "false breakout" in prices. Refiners are adopting a wait-and-see attitude, with spot market activity cooling, but no large-scale bargain hoarding has occurred, indicating lingering concerns about medium-term supply. If the strait's transit rules encounter friction or Red Sea tensions escalate, oil prices could rebound quickly, causing volatility in polyester feedstock prices. Therefore, the current phase is better viewed as a brief procurement window rather than the start of a downward trend.
On the demand side, the textile and apparel industry is at the transition between off-season and peak season, with weaving mills gradually raising operating rates and maintaining just-in-time feedstock procurement. If feedstock prices stay low, it will help improve profit margins for mid- and downstream segments, especially for polyester filament and staple fiber processing spreads. However, foreign trade companies must monitor the interplay between exchange rates and freight costs: while lower crude freight reduces logistics costs, the additional time from Cape of Good Hope detours may offset some gains, and extended delivery lead times require renegotiating contract terms.