Century Aluminum Company (CENX) - 10-K Summary
Business Context and Reporting Period
Company: Century Aluminum Company (CENX)
Filing Type: Form 10-K (Annual Report)
Reporting Period: Fiscal Year Ended December 31, 2025
Business Overview: Century is a global producer of primary aluminum and alumina. Operations include three primary aluminum smelters (Sebree, KY; Mt. Holly, SC; Grundartangi, Iceland), a carbon anode facility in Vlissingen, Netherlands, and a 55% joint venture interest in the Jamalco bauxite mining and alumina refinery in Jamaica. The company operates as a single reportable segment.
Significant Restatement: This filing is a "Comprehensive Form 10-K" that restates financial statements for 2023, 2024, and 2025. The restatement corrects an error regarding the consolidation of the Jamalco joint venture, changing from a proportionate consolidation method to full consolidation. This change did not impact net income attributable to Century stockholders for the restated periods but significantly altered balance sheet presentation and noncontrolling interest.
Key Financial Metrics (Year Ended Dec 31, 2025)
| Metric | 2025 (Restated) | 2024 (Restated) |
|---|---|---|
| Total Net Sales | $2,527.9 million | $2,220.3 million |
| Gross Profit | $256.4 million | $172.0 million |
| Operating Income | $158.1 million | $108.4 million |
| Net Income | $15.8 million | $306.7 million |
| Net Income Attributable to Century Stockholders | $41.8 million | $336.8 million |
| Diluted EPS | $0.42 | $3.27 |
| Cash from Operating Activities | $185.0 million | ($24.6 million) |
| Total Debt (Outstanding) | $548.3 million | $528.2 million |
| Liquidity (Cash + Credit Availability) | $418.0 million | N/A |
Note: 2024 Net Income included a one-time $245.9 million bargain purchase gain from the Jamalco acquisition.
Material Changes vs. Prior Period
- Revenue Growth: Net sales increased by $307.6 million (13.9%) primarily due to favorable realized LME aluminum prices and regional premiums ($415.9 million benefit), partially offset by decreased third-party alumina sales and unfavorable volume/mix.
- Profitability Decline: Despite higher gross profit, Net Income attributable to stockholders dropped significantly from $336.8 million in 2024 to $41.8 million in 2025. This is largely due to the absence of the 2024 bargain purchase gain and a $94.7 million net loss on forward and derivative contracts in 2025 (compared to a $2.5 million gain in 2024).
- Operational Disruptions: Production at the Grundartangi smelter was reduced by approximately two-thirds in October 2025 due to electrical equipment failure. Production at Mt. Holly was partially curtailed historically but is currently being restarted to full capacity.
- Debt Restructuring: In July 2025, the company issued $400 million of 6.875% Senior Secured Notes due 2032 and used proceeds to redeem the 2028 Notes and pay down credit facilities.
Guidance, Outlook, and Risks
Management Commentary & Outlook:
- New Smelter Project: Entered a joint development agreement with Emirates Global Aluminium (EGA) to build a new 750,000 tpy smelter in Inola, Oklahoma. Construction expected to start by end of 2026.
- Hawesville Sale: Sold the Hawesville, KY facility for $200 million cash plus a 6.8% equity interest in a data center project (Feb 2026). Proceeds will fund Mt. Holly restart and the new smelter.
- Capital Expenditures: Estimated 2026 CapEx is $170-$180 million, including $60-$70 million for Grundartangi repairs (expected to be insured) and $45 million for Mt. Holly restart.
- Production Targets: Expect to resume full production at Grundartangi by end of April 2026 and achieve full production at Mt. Holly by June 2026.
Key Risks & Contingencies:
- Internal Controls: The company identified a material weakness in internal controls over financial reporting related to the Jamalco consolidation and business process controls. Deloitte issued an adverse opinion on internal controls for 2025. Remediation is expected to be completed in 2026.
- Customer Concentration: Glencore plc accounted for 54.0% of consolidated sales in 2025 and owns 36.4% of Century's stock.
- Operational Risks: Ongoing equipment failure at Grundartangi and the restart of Mt. Holly carry execution risks. Power supply disruptions and raw material cost volatility remain significant threats.
- Regulatory/Tax: Reliance on Section 45X Inflation Reduction Act tax credits and potential changes to Section 232 tariffs.
Investor Verification Checklist
- Restatement Impact: Verify the specific balance sheet adjustments made to Jamalco assets and liabilities in the restated 2024 and 2023 periods (Note 22).
- Internal Control Remediation: Monitor progress on the remediation plan for the material weakness in internal controls, specifically regarding Jamalco consolidation and IT general controls.
- Grundartangi Recovery: Confirm the timeline and cost of repairs for the Grundartangi smelter and the adequacy of insurance coverage for the production loss.
- Derivative Exposure: Review the $94.7 million loss on derivatives in 2025 and the company's hedging strategy for 2026 given the volatility in LME prices.
- New Smelter Financing: Assess the status of the $500 million DOE funding and the joint venture agreement with EGA for the Oklahoma smelter project.
- Debt Covenants: Confirm compliance with financial covenants, particularly the fixed charge coverage ratio on the U.S. revolving credit facility.