LME three-month aluminum traded around $3,090 per metric ton on July 8, down sharply from the $3,571/t four-year high touched in April 2026 when the Strait of Hormuz closure and damage to Gulf smelting infrastructure sent panic through physical markets. The June 17 US-Iran framework deal and subsequent Strait reopening have unwound roughly $480/t of geopolitical risk premium, but aluminum remains elevated well above the $2,400-2,600/t range that defined 2023-2024. The market is caught between two powerful opposing forces: deeply bearish macro signals from weak Chinese data and rising Indonesian output on one side, and structurally bullish supply constraints — China’s capacity cap, record-low LME inventories, US tariffs, and European carbon costs — on the other.

LME-registered aluminum inventories stand at approximately 315,000 tonnes, down 38% since the start of 2026 and representing less than half the historical norm of 800,000-1,200,000 tonnes. Analysts at DiscoveryAlert characterize this as a “permanent shift” in how physical aluminum flows, with more metal held off-exchange and in private warehouses, and a growing share of LME-warranted metal being Russian-origin and therefore warrant-ineligible for many Western buyers. The real available inventory for non-Chinese, non-Russian consumers is significantly smaller than the headline number suggests, which explains why physical premiums in Europe and the US remain elevated even as LME prices correct.

Macquarie’s latest assessment puts the global aluminum market in a deficit of approximately 930,000 tonnes for 2026, one of the deepest shortfalls in years. The deficit is concentrated outside China, where the 45-million-tonne annual production cap, imposed as part of Beijing’s dual-carbon policy, has effectively frozen primary output growth. Within the cap, Chinese smelters are running at high utilization but cannot expand, while the removal of the 13% export VAT rebate on 24 aluminum product categories at the end of 2024 has raised effective export prices and diverted more semi-fabricated metal into domestic consumption. The net effect: China, historically the world’s largest aluminum exporter, is exporting less semi-finished product, tightening supply for the rest of the world.

The United States is now the world’s most expensive aluminum market by a wide margin. President Trump raised aluminum import tariffs from 10% to 25% in March 2025, then to 50% in June 2025. US Midwest delivery premiums hit a record $1,942/t by November 2025, and the “all-in” price of aluminum in the US — LME cash plus Midwest premium plus tariff — exceeded $5,200/t in early 2026, according to the International Aluminium Journal. This is roughly 70% above the LME benchmark. US downstream manufacturers of cans, automotive components, and building products are absorbing the highest raw material costs in the world. Some have shifted sourcing to tariff-exempt Mexican and Canadian metal, but capacity there is limited and premiums are rising.

Europe faces its own cost shock from the Carbon Border Adjustment Mechanism (CBAM), which entered its levy phase on January 1, 2026. Primary aluminum produced with coal-based power in India, Russia, and parts of China now carries an additional €300-400/t at EU borders, according to procurement advisory firm Tacto. This structurally raises the landed cost of a large share of global aluminum supply for European buyers and accelerates the premium for low-carbon metal. The European 6063 billet premium remains elevated, and Emirates Global Aluminium (EGA) continues to operate under force majeure on European billet contracts, with a restart now pushed to September 2026. European buyers are being squeezed from three directions: higher LME, higher CBAM costs, and scarce physical units.

Indonesia is the wild card on the supply side. The country is adding approximately 705,000 tonnes of new primary aluminum capacity, bringing total output to roughly 1.4 million tonnes. Indonesian primary aluminum exports rose 71% year-on-year through October 2025, and further growth is expected as smelters ramp. However, 70% of Indonesian aluminum exports go to China, reflecting China’s equity stakes in Indonesian alumina and aluminum production. This means new Indonesian metal primarily feeds the Chinese market, not the deficit ex-China market where it is most needed. Expert Market Research projects that Indonesian capacity could push the global market toward balance or small surplus by late 2026, but only if ramp-ups stay on schedule and Chinese domestic demand does not absorb the incremental output.

The Middle East and Gulf region accounts for nearly 10% of global aluminum output, primarily through smelters in the UAE, Bahrain, Saudi Arabia, and Oman. The Strait of Hormuz closure earlier in 2026 was a systemic shock because it cut off not only metal shipments but also the flow of alumina feedstock to Gulf smelters and the export of finished product to Europe and Asia. The reopening is a material supply improvement, but Argus Media and ChAI Insight caution that supply from the region may take longer than markets anticipate to normalize. Smelter damage assessments are ongoing, shipping schedules need to be rebuilt, and force majeure declarations have not all been lifted. Analysts at Citi raised their short-term aluminum target to $3,600/t, with a bullish scenario at $4,000/t if Gulf disruptions resume or if inventory draws accelerate.

The demand side is bifurcated. Structural growth from electric vehicles, renewable energy infrastructure, and grid investment remains intact. Each battery electric vehicle uses roughly 200-250 kg of aluminum versus about 140 kg for an internal combustion vehicle. Solar panel frames, wind turbine components, and high-voltage transmission lines are aluminum-intensive. This structural demand growth, estimated at 4-6% annually for aluminum by several industry reports, provides a durable floor under prices. But the cyclical picture is weaker: Chinese macro data is soft, European manufacturing PMIs are below 50, and high prices are beginning to ration demand in price-sensitive applications. The tension between structural tailwinds and cyclical headwinds is the core dynamic of the 2026 aluminum market.

What this means for buyers

Aluminum procurement in July 2026 requires operating on two timelines simultaneously. Near-term (Q3): the Strait reopening gives buyers a window to secure volume at $3,100-3,400/t, roughly 13% below the June peak. LME inventories are critically low, and any disruption — a Gulf smelter restart delay, a European winter energy spike, an escalation of Russian metal sanctions — could push prices back toward $3,600-4,000/t within weeks. Use this pullback to layer into Q3 and Q4 hedges. For European buyers, factor CBAM costs explicitly into supplier comparisons: a low-carbon supplier at $3,300/t LME-equivalent may be cheaper on a landed basis than coal-based metal at $2,900/t plus a €350/t CBAM levy. For US buyers, the 50% tariff makes domestic sourcing economically rational despite record Midwest premiums; the question is whether and when those premiums compress. Medium-term (2026-27): Indonesian capacity additions could loosen the market, but only if China’s 45Mt cap remains the binding constraint and Beijing does not absorb new Indonesian output for its own use. Structure contracts with Indonesian and Indian suppliers now as a diversification hedge against both tariff escalation and CBAM cost inflation. Do not expect a return to sub-$2,500/t aluminum in the next 18 months; the cost floor has permanently reset higher.