Crude Freight Plunges 22% as Hormuz Reroute Reshapes Cost Logic for Textile Raw Materials

Crude freight rates plunged 22% in a single week, and Brent fell below $80 per barrel—the ripple effects of the rerouting mechanism in the Strait of Hormuz are transmitting down the energy-chemical fiber-textile chain. For chemical fiber producers relying on PTA, MEG, and caprolactam, this signals a correction in cost expectations, but it is far from a trend reversal. On August 5, Iran and Oman reached a preliminary agreement on commercial vessel transit through the Strait of Hormuz: the two traditional shipping lanes used for over 60 years will be closed, and cargo ships will switch to a new temporary route passing through Iranian territorial waters. According to regional maritime service providers, detailed rules for the new route are still under negotiation, covering 72-hour advance online reporting, onboard inspection, and tiered transit service fees. This means shipping companies face a complete operational process overhaul, while transit volumes remain in a "limited recovery" state—normally 130-140 vessels transit daily, but current numbers have not exceeded 60 per day. The efficiency gains from the new route are immediate: transit efficiency rose 30%, easing congestion, and crude freight rates plunged 22% in one week. However, tankers that have been rerouting via the Cape of Good Hope have not yet returned in large numbers, and the extended shipping times continue to exert a lagging impact on global supply chains. For the textile industry, crude oil prices are a barometer for chemical fiber costs, but the dual volatility of freight and oil prices means the cost logic is being rewritten. Lower crude prices directly reduce the cost of upstream petrochemical feedstocks like naphtha and PX. On August 5, WTI closed at $75.22 per barrel, and Brent fell to $79.45, as long positions built on geopolitical risk were liquidated. For PTA and polyester filament producers, easing feedstock costs may bring phased profit recovery, but caution is warranted: the normalization of Hormuz transit remains uncertain, a large-scale return of tankers is unlikely in the short term, and the Red Sea shipping risk persists—with two major global energy chokepoints under pressure simultaneously, the supply-demand fundamentals for crude remain tight. For textile buyers, chemical fiber raw material prices may see short-term corrections, but the room for decline is limited. Asian refiners have slowed Middle Eastern crude purchases, increasing supplies from the Americas and Russia, and spot market activity has cooled, lowering procurement costs for downstream petrochemical plants. This means polyester and nylon product prices may follow feedstock declines, but fabric mills should not over-rely on low prices—geopolitical risk premiums can return at any time. In the medium to long term, the adjustment of Hormuz transit rules may reshape global energy trade flows, thereby affecting the raw material supply pattern for textile industry clusters. If the efficiency of Middle Eastern petrochemical exports to Asia continues to improve, it will benefit coastal chemical fiber hubs; conversely, if the new route faces friction or geopolitical tensions recur, the norm of Cape of Good Hope detours could push up import costs for raw materials, pressuring polyester plants that depend on imported PX and MEG. Companies should monitor crude futures and spot spreads for PTA and MEG, build inventory in batches during price dips, and avoid overstocking. Exporters should incorporate raw material price fluctuation clauses into contracts and diversify shipping routes to hedge against cost risks.