

Rio Tinto and Century Aluminium have raised aluminium billet premiums in the United States by around 12 per cent amid supply disruptions linked to the Iran war, news sources reported on April 8, 2026.
{alcircleadd}The two producers increased premiums by about 3 cents per pound, bout USD 110 per tonne, compared to pre-war levels. Rio Tinto is also pushing customers to sign multiyear contracts at the revised rates.
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The increase reflects disruptions in aluminium flows from the Persian Gulf, which accounts for nearly 20 per cent of US imports. With supply routes under strain, US buyers are turning more to domestic producers, where supply remains tight and prices are elevated.
Aluminium prices have climbed over 10 per cent since the conflict began in late February 2026. The US Midwest premium has surged to a record USD 1.1325 per pound.
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