Magnitude 7 Metals to Restart Missouri Smelter, Boosting US Aluminium Production by 20%

Published: Jul 2, 2026 10:28

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[SMM Aluminum Express News] Magnitude 7 Metals will restart potline one at its Marston, Missouri aluminium smelter, bringing an additional 75,000 tpy of primary aluminium capacity online by the end of 2026. The American Primary Aluminum Association (APAA) welcomed the decision, noting that the restart, together with Century Aluminum’s Mt. Holly restart, could increase US domestic primary aluminium production by more than 20% while creating hundreds of manufacturing jobs and strengthening supply chain resilience.

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