Crude freight rates plunged 22% in a single week, and Brent fell below $80 per barrel—the news of the shipping mechanism overhaul in the Strait of Hormuz is transmitting through the textile and chemical fiber supply chain faster than expected. For enterprises relying on Middle Eastern petrochemical raw materials like PTA and polyester filament, this is not just a price fluctuation but a reshaping of procurement logic.
Event Background
On August 5, Iran and Oman reached a preliminary agreement on commercial vessel transit through the Strait of Hormuz, closing the dual north-south shipping lanes used for over 60 years and diverting all merchant ships to a new temporary route through Iranian territorial waters. According to industry public data, the new route boosts transit efficiency by 30%, but current daily transits remain below 60 vessels, far from the normal 130-140, indicating a "limited recovery" in shipping.
This adjustment directly triggered an unwinding of geopolitical risk premium in the oil market: WTI closed at $75.22 per barrel, and Brent fell to $79.45, marking a third consecutive day of declines. Previously, Brent had surged above $110 on supply disruption fears; now long positions have exited en masse, clearly lowering the oil price center.
For the textile industry, oil prices are the "master switch" for chemical fiber costs. Every $10 drop in Brent theoretically reduces PTA costs by 400-500 yuan per ton, with polyester filament following suit. This means the squeezed profit margins in chemical fibers, strained by high oil prices, may gain short-term relief.
Industry Impact
On the spot market, Middle Eastern crude discounts are weakening, and Asian refiners are postponing medium-term purchases, shifting to American and Russian supplies. This procurement shift will transmit along the chain to naphtha, PX, and PTA, with polyester raw material prices expected to see a phased correction over the next 2-4 weeks, though the magnitude may be smaller than oil's decline due to refinery operating rate adjustments.
For downstream fabric mills, lower raw material costs are a clear positive. For example, if PTA drops by 500 yuan per ton, polyester filament costs could decrease by 300-400 yuan per ton, easing cash flow pressures for weavers. However, caution is warranted: the detailed rules for the new shipping route—72-hour advance reporting, onboard inspections, tiered transit fees—are still under negotiation, and whether transit efficiency can be sustained remains uncertain.
More critically, the Red Sea shipping disruption risk persists, with both global energy chokepoints under pressure simultaneously, leaving a structural gap in Middle Eastern crude exports that cannot be quickly filled. Asia and Europe rely on Hormuz for 30% of crude and 20% of LNG exports, and US and Russian oil can only supplement, not replace. This means oil's downside is limited, and the "cost dividend" for chemical fibers may not last long.