Aluminum ingots move through an industrial production line at a metal processing facility. Global aluminum markets are being reshaped by sanctions, tariffs, energy costs, and disruptions tied to the Iran war and the Strait of Hormuz. (Shutterstock/jb moordiana)

Three Ways the Aluminum Crunch Could Evolve

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The global aluminum market is no longer unified. Sanctions, tariffs, power costs, and Persian Gulf disruptions are creating entirely different markets for different buyers.

Aluminum is the infrastructure metal at the heart of modern industrial power. It is the metal in our car doors and aircraft wings, our drink cans and power lines, the frames of our windows, and the housing of our electronics. Yet in 2026, the value of aluminum is very different depending on who you are and where you sit in the chain. A tonne that is cheap and abundant for one buyer can be prohibitively priced or inaccessible for another, once you layer on sanctions, conflict-related outages, carbon rules, and electricity costs. The result is a market that is tight even though alumina and bauxite ore reserves remain large, and most estimates still show global nameplate smelting capacity exceeding actual output.

Most analysis and market coverage have already told the story of how we got here. 

Successive rounds of sanctions that have pushed Russian aluminum out of Western markets.

Beijing’s decision to cap primary capacity around 45 million tonnes as part of domestic efforts to rein in overcapacity, emissions, and energy management. 

The European Union’s (EU) Carbon Border Adjustment Mechanism (CBAM).

The United States’ tariffs on allied suppliers, particularly on Canada. 

Artificial Intelligence (AI)‑driven energy demand that is repricing industrial electricity.

All this uncertainty is now compounded by the military action in the Persian Gulf that has damaged smelters and, at the time of writing, has left the Strait of Hormuz formally subject to a limited ceasefire but still heavily restricted and effectively closed to most commercial shipping. Rather than retell that history, we ask what happens next—how the different policy decisions in Washington, Brussels, Ottawa, Beijing, and the Gulf could redraw the map of who wins and who loses in the aluminum trade.

The Iran War Turned Aluminum Into a Supply Shock

The Iran War has turned what first looked like a shipping problem into a genuine supply shock. Smelter rebuilds and power‑plant repairs are on 12- to 18-month timelines, keeping a significant share of regional output offline or constrained. The Hormuz risk premium on insurance and freight persists, making exports structurally more expensive even once facilities come back online. 

Current market analysis suggests that prolonged outages and shipping disruptions could leave the aluminum market 3-4 million tonnes short this year, with around 3-3.5 million tonnes of that tied to lost or constrained Persian Gulf production and associated shipping disruptions. Regional producers warn that restarting damaged smelters may take up to a year, even if political conditions improve. In a world where China’s capped primary output serves mostly its own 45‑million‑tonne domestic market, a 3‑million‑tonne Gulf loss amounts to roughly 10 percent of the remaining non‑Chinese primary supply, a shock large enough to justify re‑routing logistics around the Strait of Hormuz and building more secure offtake arrangements.

Three Paths for Aluminum Markets 

Over the next 12 to 24 months, the direction of policy across three potential pathways will be decisive in shaping aluminum markets. 

The first path would be a US decision to ease tariffs for allied, low‑carbon suppliers—most notably Canada. A second is more controversial but more powerful for prices and trade flows—a partial reopening of the channels to Russian aluminum that sanctions and exchange rules have pushed to the edge of the Western system. A third path is continued energy input cost pressures and conflict-related supply risk, accompanied by a world in which nothing major changes in sanctions and tariffs. This would result in electricity prices and conflict-related risks shaping which smelters can keep making metal and which markets they can still serve.

Path 1:  The Canadian Aluminum Supply Bridge Reopens

In the first path, Washington opts to ease up on Section 232 tariffs and quotas for a close ally such as Canada, reopening a stable supply bridge between North American smelters and US manufacturers. Canadian hydro‑powered metal is already the main external source of primary aluminum for the US, but under current tariffs, much of the cost is........

© The National Interest