Europe's aluminum sector under strain; premiums, smelter disruption and CBAM tighten the market

Premiums surge as supply tightens across Europe

The first sign came from the premium market. By November 2025, Europe's duty-paid premium had climbed to USD 324.38 per tonne, after touching a nine-month high of USD 330 per tonne on November 3. Forecasts for December point to roughly USD 335.50 per tonne, with 2026 estimates sitting between USD 327.25 and USD 330.50 per tonne. The rise did not come from a single trigger but from a combination of tightening supply, higher freight rates and early adjustments to carbon-related costs.

As premiums rise, the impact is quickly rippling through Europe's manufacturing chain. Automotive, construction and packaging companies are facing higher raw material costs, squeezing margins and difficult procurement decisions. Smaller manufacturers are feeling the strain most sharply. Traders are dealing with bigger working capital requirements and more volatile pricing, while Europe's secondary aluminum producers are reducing billet output because high scrap and ingot prices are making operations less viable. Large consumers such as Ball Corporation and Crown Holdings are bracing for higher costs of goods sold, pressure that is likely to feed through to retail prices.

At the same time, aluminum producers operating within the EEA benefited from stronger regional margins, while Norwegian and Icelandic suppliers - exempt from CBAM - strengthened their competitive edge.

Iceland smelter outage

Just as the market was adjusting to higher premiums, a major supply shock hit. In late October, the Grundartangi smelter in Iceland - operated by Century Aluminum which produces 320,000 tonnes a year suffered a critical electrical equipment failure that caused shut down of one potline. Output fell by about two-thirds, removing roughly 213,000 tonnes from yearly availability. Repairs are expected to stretch over 11–12 months, extending the strain well into 2026.

This outage mattered because Iceland had been Europe's second-largest aluminum supplier in the first eight months of the year, delivering 241,412 tonnes after Mozambique, which is EU's largest supplier over the same period with 337,670 tonnes. The Mozambique smelter became even more critical - but the longer shipping distances and higher logistical costs added another upward push to European premiums.

CBAM effect

The third pressure point has not come from the market but from policy. The EU's Carbon Border Adjustment Mechanism will formally take effect on January 1, 2026, and the payments for carbon certificates will start in 2027. Even during its transition phase, CBAM has begun to reshape pricing. Carbon factors are already being incorporated into duty-paid premium calculations across Europe, including Rotterdam in-warehouse values and regional benchmarks in Italy and Spain.

As importers anticipate higher future costs and increased administrative requirements, they have accelerated purchases in 2025 to get ahead of the new system. Under CBAM, importers will need to obtain certificates reflecting the embedded emissions of the metal they bring into the bloc, benchmarked against EU ETS prices currently around EUR 90–100 per tonne of CO₂. For high-carbon contain, this is expected to translate to an additional USD 100–150 per tonne, effectively raising European prices by 10–20 per cent.

As Europe relies on imports for nearly two-thirds of its aluminum, the impact will be market-wide, spilling into products made from scrap also. Meanwhile, the removal of free carbon allowances raises costs for domestic smelters. Only Norwegian and Icelandic producers remain outside CBAM, leaving them with a structural cost advantage that could support long-term market share gains.

How the three pressures reinforced each other

By late 2025, these three forces - rising premiums, the Icelandic smelter outage and CBAM's arrival had merged into a single feedback loop. Higher premiums reflected early carbon-cost adjustments and the shift to more distant suppliers. The Grundartangi breakdown intensified the tightness just as buyers were stockpiling ahead of CBAM. Each factor amplified the next, turning price pressure into a broader market squeeze.