Century Aluminum has released its fourth quarter financial results for 2025.

The results display a decrease in net income and shipments of primary aluminium due to Century’s equipment failure at its Iceland facility.

Shipments of primary aluminium decreased 14% sequentially, attributable to this idled production at Century’s Iceland facility.

Century reported net income attributable to Century stockholders of $1.8 million for the fourth quarter of 2025, a $13.1 million decrease sequentially due to the Iceland equipment failure and costs related to recovery from Hurricane Melissa.

Fourth quarter results were also impacted by $126.4 million of net exceptional items, including $30.9 million (net of tax) related to the company’s Iceland equipment failure, $32.6 million in share-based compensation costs, $27.6 million of unrealised losses on forward derivative contracts, $5.7 million related to the hurricane impact at Jamalco, Hawesville inventory write-down of $9.9 million, Mt. Holly restart project costs of $8.0 million and $9.8 million of lower cost or net realisable value inventory adjustment.

Adjusted EBITDA attributable to Century stockholders for the fourth quarter of 2025 was $170.6 million. This was a sequential improvement of $69.5 million. This improved primarily due to favourable realised LME, regional price premiums, improved operating costs and increased volume attributable to Mt. Holly over the quarter.

For the full year 2025, shipments of primary aluminium decreased by 5%.

Additionally, net sales for the full year 2025 increased by $307.6 million sequentially, primarily due to higher realised aluminium prices.

In terms of Century’s Iceland facility, repairs are underway and the smelter is expected to return to most of its capacity by the end of April.

CEO of Century, Jesse Gary, stated: “With global supply chains for transformers stressed by the unprecedented demand from global data centre construction, we continue to expect it will take until Q4 of this year for the new replacement transformers to be installed.”

However, Mr Gary concluded: “The good news here is we now expect that we will be able to repair some of the damage transformers and begin to restart Line 2 at the end of April, about 6 months sooner than originally anticipated.”