8-K/A: Century Aluminum Soars on Strong Q3, Bullish Q4 Outlook

Century Aluminum Company reported a significant turnaround in its third-quarter 2025 financial results, driven by favorable premiums and a strong outlook for the fourth quarter.

Summary

• Net income attributable to Century stockholders was $14.9 million for Q3 2025, a $19.5 million increase sequentially from a loss of $4.6 million in Q2 2025.
• Diluted earnings per share attributable to Century stockholders improved to $0.15 in Q3 2025 from a loss of $0.05 in Q2 2025.
• Adjusted net income attributable to Century stockholders rose to $57.9 million in Q3 2025, up $27.5 million sequentially from $30.4 million in Q2 2025.
• Adjusted EBITDA attributable to Century stockholders reached $101.1 million in Q3 2025, an increase of $26.8 million from $74.3 million in Q2 2025.
• Net sales for Q3 2025 increased slightly to $632.2 million, up $4.1 million sequentially, primarily due to an increase in realized Midwest premium.
• The realized Midwest Premium was $1,425/MT in Q3 2025, an increase of $575/MT from the prior quarter.
• The company finalized a power agreement for its Mt. Holly facility through 2031, a critical step towards restarting idled capacity.
• A 2024 45X refund totaling $75 million was received in October 2025.
• Liquidity position at September 30, 2025, was $488.2 million, comprising $151.4 million in cash and cash equivalents and $336.8 million in combined borrowing availability.

Sentiment

Score: 8

Explanation: The filing indicates strong financial performance in Q3 2025 with significant improvements in net income and adjusted EBITDA, coupled with a very positive outlook for Q4 2025 driven by favorable market premiums. Strategic progress on Mt. Holly restart and a substantial tax refund further bolster positive sentiment, despite some exceptional items.

Positives

• Net income attributable to Century stockholders significantly improved to $14.9 million in Q3 2025 from a loss of $4.6 million in Q2 2025.
• Adjusted EBITDA attributable to Century stockholders increased substantially to $101.1 million in Q3 2025, up $26.8 million sequentially.
• Realized Midwest Premium surged to $1,425/MT in Q3 2025, marking a $575/MT increase from the previous quarter.
• A long-term power agreement for Mt. Holly through 2031 was finalized, enabling the restart of idled capacity.
• Received a $75 million 45X refund for 2024 in October 2025.
• U.S. billet premiums are expected to increase by $110/MT for FY26 volumes.
• Strong liquidity position of $488.2 million at September 30, 2025.

Negatives

• Aluminum shipments decreased to 162,442 tonnes in Q3 2025 from 175,741 tonnes in Q2 2025.
• Q3 2025 results were partially offset by higher losses on derivative instruments, unfavorable volume and sales mix, and unfavorable power price realization.
• Exceptional items totaling $43.8 million impacted Q3 results, including $20.7 million in unrealized losses on derivative instruments, $9.7 million in share-based compensation, a $6.2 million loss on extinguishment of debt, and $4.2 million related to equipment failures in Iceland.

Risks

• Global and local financial and economic conditions could impact performance.
• Fluctuations in aluminum market prices, including premiums, pose a risk.
• Volatility in prices, supply, and availability of key raw materials such as alumina, coke, pitch, and aluminum fluoride.
• Uncertainty regarding power prices and availability, including potential curtailments or disruptions.
• The impact of geopolitical conflicts, including the wars in Ukraine and the Middle East, and associated sanctions and export controls.
• Ability to successfully manage market risk and control or reduce costs.
• Challenges and uncertainties related to the restart of curtailed production at Mt. Holly, including timing, costs, and benefits.
• Potential future impact of equipment failure at Grundartangi and related events on financial and operating performance, including insurance coverage.
• Ability to successfully obtain and/or retain competitive power arrangements for operations, including for a greenfield project.
• Impact of Section 232 and 301 and other trade actions, tariffs, or changes to these remedies.
• Impact of new or changed laws, regulations, sanctions, or restrictions, or changes in interpretation of existing laws.
• Uncertainty regarding anticipated tax liabilities, benefits, or refunds, and the realization of deferred tax assets and liabilities.
• Ability to qualify for and realize potential tax benefits under the Inflation Reduction Act of 2022.
• Uncertainty regarding the availability of $500 million DOE funding for a new smelter project and the ability to raise additional capital for its construction.
• Ability to access existing or future financing arrangements and the terms of such arrangements.
• Ability to repay or refinance debt in the future.
• Ability to recover losses from insurance.
• Estimates of pension and other postretirement liabilities, legal and environmental liabilities, and other contingent liabilities.
• Outcomes of future tax audits.
• Negotiations with current labor unions or future representation by a union of employees.
• Information technology-related risks, including cyberattacks or other data security breaches.
• Risks associated with potential M&A and joint venture activity, such as unforeseen costs, unidentified liabilities, and integration difficulties.

Future Outlook

The company expects fourth-quarter 2025 Adjusted EBITDA to range between $170 million to $180 million, primarily driven by higher realized LME and Midwest regional premiums. U.S. billet premiums are also anticipated to increase by $110/MT for FY26 volumes.

Management Comments

• Net sales for the third quarter ended September 30, 2025, increased by $4.1 million sequentially primarily driven by an increase in realized Midwest premium, partially offset by unfavorable volume and sales mix and third-party alumina sales.
• The increase in net earnings during the third quarter of 2025 was primarily attributable to favorable realized Midwest Premium, partially offset by higher losses on derivative instruments, unfavorable volume and sales mix, unfavorable power price realization and unfavorable other costs, including increased labor costs associated with the Mt. Holly restart project.
• Adjusted EBITDA attributable to Century stockholders for the third quarter of 2025 was $101.1 million, an increase of $26.8 million from the prior quarter, mainly from favorable realized Midwest Premium, partially offset by unfavorable volume and sales mix and unfavorable power price realization.

Industry Context

The company's strong Q3 performance and positive Q4 outlook are significantly influenced by favorable realized Midwest Premium and expected higher LME and Midwest regional premiums, indicating a robust pricing environment within the aluminum industry. The finalization of the Mt. Holly power agreement also reflects strategic moves to optimize production capacity in response to market conditions.

Comparison to Industry Standards

• NA

Stakeholder Impact

• Shareholders are likely to benefit from the significant improvement in net income and adjusted EBITDA, as well as the strong Q4 2025 outlook, potentially leading to increased share value.
• Employees involved in the Mt. Holly restart project will see increased labor costs, indicating ongoing operational activity.
• Customers may face increased U.S. billet premiums for FY26 volumes, reflecting higher market prices.

Next Steps

• Hold a conference call on November 6, 2025, at 5:00 p.m. Eastern Time to discuss Q3 2025 results.
• Archive a replay of the webcast and associated presentation materials for future access.
• Restart idled capacity at the Mt. Holly facility following the finalization of the power agreement through 2031.
• Pursue $500 million DOE funding and additional capital for the construction of a new aluminum smelter.

Key Dates

Recommendation

The company demonstrated a robust financial turnaround in Q3 2025, with substantial increases in net income and adjusted EBITDA, significantly exceeding prior quarter performance. The Q4 2025 Adjusted EBITDA guidance of $170M-$180M is exceptionally strong, driven by favorable LME and regional premiums, indicating continued operational strength and market tailwinds. Strategic achievements like the Mt. Holly power agreement and a $75 million tax refund further de-risk future operations and enhance liquidity. These factors collectively point to a compelling investment opportunity with strong near-term catalysts and positive momentum.

Keywords

Aluminum, Smelting, Q3 2025 Earnings, Financial Results, Adjusted EBITDA, Midwest Premium, Mt. Holly, Power Agreement, 45X Refund, SEC Filing, CENX, Primary Aluminum, Corporate Governance, Risk Management