Aluminum prices advanced to their highest level since January as escalating conflict involving Iran raised fears that key shipping routes for Middle Eastern producers could face disruption. The metal settled 1.7% higher at $3,194.50 per metric ton on the London Metal Exchange, reflecting growing risk premiums embedded in global supply chains.

The focal point of concern is the Strait of Hormuz, a strategic maritime corridor used by major Gulf aluminum producers to export finished metal and import raw materials such as alumina and bauxite. Any sustained interruption through the chokepoint would tighten availability in Europe and Asia, where consumers rely heavily on Middle Eastern supply.

Regional Production at Risk

The Middle East accounts for approximately 9% of global aluminum production capacity, according to consultancy AZ China Ltd. Producers such as Emirates Global Aluminium in the UAE and Aluminium Bahrain operate large-scale smelters that depend on stable maritime logistics.

Over the weekend, the UAE confirmed that debris from an aerial interception caused a fire at a berth in Jebel Ali port, located near Emirates Global Aluminium’s facilities. While operations continue, the incident highlights the vulnerability of industrial infrastructure in the region.

Iran itself has around 790,000 tons of annual smelting capacity. AZ China estimates that between 50,000 and 80,000 tons have already been halted as precautionary measures amid the military escalation. Additional stoppages may occur if port activity slows or energy supply becomes unstable.

Analysts warn that disruptions to bauxite or alumina flows pose significant risks, particularly given that smelters typically hold only one to two weeks of raw material inventory.

Market Structure Reflects Immediate Tightness

Price spreads tightened sharply, with spot aluminum contracts trading at a premium to later-dated futures in a condition known as backwardation. This structure suggests that immediate supply concerns are outweighing longer-term demand uncertainties.

Further reinforcing the tightening narrative, Rio Tinto Group suspended negotiations with Japanese clients for second-quarter supply following the geopolitical escalation. The company had initially offered shipments at a $250-per-ton premium over LME prices — already the highest premium since at least 2015 — before withdrawing the proposal.

Last week, large-scale call option trades targeting prices between $3,300 and $3,500 per ton signaled growing speculative positioning around a potential shortage scenario.

Macro Crosscurrents Complicate Outlook

Despite rising supply risk, broader macro forces are tempering the rally. The U.S. dollar strengthened sharply, creating headwinds for commodities priced in dollars. Copper erased earlier gains to settle lower, illustrating the tension between geopolitical supply risk and risk-off positioning.

Analysts at Citigroup Inc. described the situation as a “two-way macro pull.” On one side, Gulf tensions threaten to elevate regional premiums in Europe and the United States. On the other, dollar strength and broader concerns about global growth exert downward pressure.

Iron ore also edged higher to $99.10 per ton in Singapore, reflecting broader sensitivity in metals markets. The Middle East accounts for roughly 13% of global iron ore pellet production, adding another layer of exposure.

The durability of aluminum’s move will depend on whether maritime traffic through the Strait of Hormuz remains operational. Short-term disruptions may translate into higher freight and insurance costs, while prolonged instability could trigger a more structural repricing of global supply risk.