Century Aluminum 2026 Guidance Holds as US Smelter Restart Supports Supply

Century Aluminum

Century Aluminum 2026 guidance remains unchanged as the US primary aluminium producer continues to ramp idled and disrupted capacity in South Carolina and Iceland. The company maintained its full-year shipment target of 630,000t of primary aluminium.

Century Aluminum 2026 guidance is being supported by the restart of more than 50,000t of idled capacity at the Mt Holly smelter in South Carolina. The restart began on 16 April, and the plant is expected to return to full production by the end of June.

Century Aluminum 2026 guidance also depends on the recovery of the Nordural aluminium smelter in Iceland after an electrical equipment failure in October 2025. The company expects the facility to return to nearly full production by the end of July.

First-quarter shipments fell by 27% from a year earlier to 122,865t. However, revenue rose by 2.4% to $649.2mn, supported by stronger realised aluminium prices on the London Metal Exchange and higher regional premiums.

Mt Holly Restart Adds Domestic Aluminium During Supply Disruption

Mt Holly produced 40,000t of aluminium in the first quarter, down 4.8% from a year earlier. The restart of idled capacity should increase output through the second quarter and strengthen domestic US supply.

The timing is important. The US-Israel war with Iran has disrupted Middle East aluminium production and exports, tightening supply availability for western buyers.

Century has already placed volumes from the Mt Holly expansion with US customers. This shows that domestic primary aluminium is gaining strategic value as buyers seek supply outside disrupted maritime and regional trade routes.

The Mt Holly restart also fits the wider US policy environment. Higher Section 232 aluminium tariffs have made domestic primary aluminium production more attractive and encouraged investment in US capacity.

For downstream users, additional Mt Holly volumes can support packaging, automotive, construction, aerospace and industrial supply chains that need reliable domestic metal.

Iceland Recovery and Oklahoma Project Shape Growth Outlook

Nordural remains the key recovery asset outside the US. The Icelandic smelter produced only 29,000t in the first quarter, down 61% from a year earlier after the October electrical equipment failure.

Century expects Nordural to return to nearly full output by the end of July. That recovery is essential if the company is to meet its unchanged shipment guidance.

The company is also moving toward a larger strategic expansion. It expects to make a final investment decision and break ground by year-end on its joint Oklahoma smelter project with Emirates Global Aluminium.

That project would strengthen US primary aluminium capacity at a time when domestic supply security is becoming more important to industrial policy. It also links Century to EGA, one of the world’s major aluminium producers.

Century’s first-quarter profit increased sharply to $337.5mn from $29.7mn a year earlier. The result was boosted by the $287.9mn sale of its Hawesville, Kentucky, site to data centre infrastructure developer TeraWulf and a $33mn insurance gain related to the Iceland equipment failure.

The financial result therefore includes major one-time benefits. The operating story remains focused on whether Mt Holly and Nordural can ramp smoothly and whether the Oklahoma project can move from planning to execution.

The Metalnomist Commentary

Century’s unchanged guidance shows how valuable restart capacity has become in a disrupted aluminium market. The strategic question is whether US primary aluminium can move from temporary supply support to a durable investment cycle built around power, tariffs and domestic industrial demand.