# EDGAR Filing Document

**Accession Number:** 0000949157
**File Stem:** 0001628280-26-009831
**Filing Date:** 2026-2
**Character Count:** 58115
**Document Hash:** 9d297fed6310d3e9489badd338879faa
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-009831.hdr.sgml**: 20260219

**ACCESSION NUMBER**: 0001628280-26-009831

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 15

**CONFORMED PERIOD OF REPORT**: 20260219

**ITEM INFORMATION**: Results of Operations and Financial Condition

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260219

**DATE AS OF CHANGE**: 20260219

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CENTURY ALUMINUM CO
- **CENTRAL INDEX KEY:** 0000949157
- **STANDARD INDUSTRIAL CLASSIFICATION:** PRIMARY PRODUCTION OF ALUMINUM [3334]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 133070826
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34474
- **FILM NUMBER:** 26655225

**BUSINESS ADDRESS:**
- **STREET 1:** 1 SOUTH WACKER DRIVE
- **STREET 2:** SUITE 1000
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606
- **BUSINESS PHONE:** 3126963101

**MAIL ADDRESS:**
- **STREET 1:** 1 SOUTH WACKER DRIVE
- **STREET 2:** SUITE 1000
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606

?xml version='1.0' encoding='ASCII'? cenx-20260219

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**FORM 8-K** 

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934**

Date of report (Date of earliest event reported): February 19, 2026

![Logo gif.gif](cenx-20260219_g1.gif)

**Century Aluminum Company** 

(Exact Name of Registrant as Specified in Charter)

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| | | |
|:---|:---|:---|
| **Delaware** | **001-34474** | **13-3070826** |
| (State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.) |

---

---

| | |
|:---|:---|
| **One South Wacker Drive** | |
| **Suite 1000** | |
| **Chicago** | |
| **Illinois** | **60606** |
| (Address of Principal Executive Offices) | (Zip Code) |
| **(312)** | **696-3101** |
| (Registrant's telephone number, including area code) | (Registrant's telephone number, including area code) |
| **N/A** | **N/A** |
| (Former Name or Former Address, if Changed Since Last Report) | (Former Name or Former Address, if Changed Since Last Report) |

---

---

| | |
|:---|:---|
| Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: | Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: |
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |

---

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| Title of each class: | Trading Symbol(s) | Name of each exchange on which registered: |
| **Common Stock, $0.01 par value per share** | **CENX** | **Nasdaq Stock Market LLC** |
|  |  | **(Nasdaq Global Select Market)** |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b– 2 of the Securities Exchange Act of 1934 (§ 240.12b–2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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**Item 2.02. Results of Operations and Financial Condition.**

On February 19, 2026, Century Aluminum Company (the "Company") issued a press release announcing its results of operations for its fourth quarter and full year ended December 31, 2025. A copy of the Company's press release is attached as Exhibit 99.1 and is incorporated herein by reference.

The Company will hold a follow-up conference call on Thursday, February 19, 2026, at 5:00 p.m. Eastern Time. The earnings call will be webcast live on the Company's website, located at www.centuryaluminum.com. Anyone interested in listening to the live webcast should plan to begin the registration process for the webcast at least 10 minutes before the live call is scheduled to begin. A replay of the webcast and associated presentation materials will be archived and available for replay approximately two hours following the live call.

The information in this Current Report and Exhibit 99.1 attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

**Item 9.01. Financial Statements and Exhibits.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(d) Exhibits**

---

| | |
|:---|:---|
| Exhibit Number | Description |
| <u>[99.1](exhibit99120251231q4earnin.htm)</u> | <u>[Press Release dated February 19, 2026](exhibit99120251231q4earnin.htm)</u> |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

---

------

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | | | | |
|:---|:---|:---|:---|:---|
| | | | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** |
| Date: | February 19, 2026 | By: | /s/ *PETER TRPKOVSKI* | /s/ *PETER TRPKOVSKI* |
|  |  |  | Name: | Peter Trpkovski |
|  |  |  | Title: | Executive Vice President and Chief Financial Officer<br>(Principal Financial Officer) |

---

## Exhibit 99.1

 **&nbsp;&nbsp;&nbsp;&nbsp;<u>Exhibit 99.1</u>**

![logogifa.gif](logogifa.gif)

**Century Aluminum Company Reports Fourth Quarter 2025 Results**

Chicago, February 19, 2026 (GLOBE NEWSWIRE) -- Century Aluminum Company (NASDAQ: CENX) today announced its fourth quarter and full year 2025 results.

**<u>Fourth Quarter 2025 Highlights</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Net sales of $633.7 million

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Reported net income attributable to Century stockholders of $1.8 million, or $0.02 per diluted share; Adjusted net income attributable to Century stockholders of $128.2 million<sup>1</sup>, or $1.25 per share; Adjusted EBITDA attributable to Century stockholders of $170.6 million<sup>1</sup>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Ending cash and cash equivalents of $134.2 million and strong liquidity of $418.0 million at December 31, 2025

**<u>Full Year 2025 Highlights</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Net sales of $2.5 billion

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Reported net income attributable to Century stockholders of $41.8 million, or $0.42 per diluted share; Adjusted net income attributable to Century stockholders of $253.8 million<sup>1</sup>, or $2.46 per share; Adjusted EBITDA attributable to Century stockholders of $425.1 million<sup>1</sup>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• In January 2026, announced a joint development agreement with Emirates Global Aluminium ("EGA") to build a new smelter in Oklahoma, the first new primary aluminum smelter in the United States since 1980

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• In February 2026, announced the sale and redevelopment of the previously curtailed Hawesville smelter

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Announced Mt. Holly restart over 50,000MT of idled production by the end of second quarter of 2026

**<u>Fourth Quarter & Full Year 2025 Financial Results</u>**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **<u>$MM (except shipments and per share data)</u>** | | | | |
| | **<u>Q4 2025</u>** | **<u>Q3 2025</u>** | **<u>FY 2025</u>** | **<u>FY 2024</u>** |
| Shipments (tonnes) | 140257 | 162442 | 647112 | 677967 |
| Net sales | $633.7 | $632.2 | $2527.9 | $2220.3 |
| Net income attributable to Century stockholders | $1.8 | $14.9 | $41.8 | $336.8 |
| Diluted earnings per share attributable to Century stockholders | $0.02 | $0.15 | $0.42 | $3.27 |
| Adjusted net income<sup>(1)</sup> attributable to Century stockholders | $128.2 | $57.9 | $253.8 | $101.4 |
| Adjusted earnings per share<sup>(1)</sup> attributable to Century stockholders | $1.25 | $0.56 | $2.46 | $0.72 |
| Adjusted EBITDA<sup>(1)</sup> attributable to Century stockholders | $170.6 | $101.1 | $425.1 | $244.2 |
| <sup>(1)</sup> Non-GAAP measure; see reconciliation of GAAP to non-GAAP financial measures. | <sup>(1)</sup> Non-GAAP measure; see reconciliation of GAAP to non-GAAP financial measures. | <sup>(1)</sup> Non-GAAP measure; see reconciliation of GAAP to non-GAAP financial measures. | <sup>(1)</sup> Non-GAAP measure; see reconciliation of GAAP to non-GAAP financial measures. | <sup>(1)</sup> Non-GAAP measure; see reconciliation of GAAP to non-GAAP financial measures. |

---

In the fourth quarter of 2025, shipments of primary aluminum decreased 14% sequentially, attributable to idled production at our Iceland facility due to equipment failure. Net sales for the fourth quarter of 2025 increased marginally due to higher aluminum prices and increased regional premiums.

Century reported net income attributable to Century stockholders of $1.8 million for the fourth quarter of 2025, a $13.1 million decrease sequentially primarily due to the Iceland equipment failure and costs related to recovery from Hurricane Melissa. Fourth quarter results were impacted by $126.4 million of net exceptional items, in particular $30.9 million (net of tax) related to our Iceland equipment failure, $32.6 million in share-based compensation costs, $27.6 million of unrealized 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 realizable value inventory adjustment. Thus, Century reported an Adjusted net income attributable to Century stockholders of $128.2 million for the fourth quarter of 2025, a $70.3 million improvement sequentially.

------

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. Adjusted EBITDA improved primarily driven by favorable realized LME and regional price premiums and improved operating costs and increased volume attributable to Mt. Holly over prior quarter.

Century's liquidity position at December 31, 2025, comprised of cash and cash equivalents of $134.2 million and $283.8 million in combined borrowing availability, was $418.0 million.

For the full year 2025, shipments of primary aluminum decreased by 5% sequentially. Net sales for the full year 2025 increased by $307.6 million sequentially, primarily due to higher realized aluminum prices.

Century reported net income attributable to Century stockholders of $41.8 million for the full year 2025, a $295.0 million decrease from the full year 2024. Full year 2025 results were impacted by $213.8 million of exceptional items, in particular $62.8 million of net losses on forward derivative contracts, partially offset by $47.0 million in share-based compensation costs, $37.3 million (net of tax) related to our Iceland equipment failure, $5.7 million related to the hurricane impact at Jamalco, Hawesville inventory write-down of $9.9 million, Mt. Holly restart project costs of $8.5 million and $10.5 million lower of cost or net realizable value inventory adjustment. Thus, Century reported an Adjusted net income attributable to Century stockholders of $253.8 million for the full year 2025, a $152.4 million improvement from the full year 2024.

Adjusted EBITDA attributable to Century stockholders for the full year 2025 was $425.1 million, an improvement of $180.9 million compared to the prior year, primarily driven by higher realized aluminum prices and regional premiums.

**<u>First Quarter 2026 Outlook</u>**

The Company expects first quarter Adjusted EBITDA attributable to Century stockholders to range between $215 to $235 million based on improved metal pricing and regional premiums, partially offset by temporary higher energy costs in the United States as a result of Winter Storm Fern.

**About Century Aluminum Company**

With its corporate headquarters located in Chicago, IL, Century Aluminum owns and operates primary aluminum smelting facilities in the United States and Iceland and is the majority owner and managing partner of the Jamalco alumina refinery in Jamaica. Visit <u>www.centuryaluminum.com</u> for more information.

**Non-GAAP Financial Measures**

Adjusted net income (loss), Adjusted earnings (loss) per share and Adjusted EBITDA are non-GAAP financial measures that management uses to evaluate Century's financial performance. These non-GAAP financial measures facilitate comparisons of this period's results with prior periods on a consistent basis by excluding items that management does not believe are indicative of Century's ongoing operating performance and ability to generate cash. Management believes these non-GAAP financial measures enhance an overall understanding of Century's performance and our investors' ability to review Century's business from the same perspective as management. The tables below, under the heading "Reconciliation of Non-GAAP Financial Measures," provide a reconciliation of each non-GAAP financial measure to the most directly comparable GAAP financial measure. Non-GAAP financial measures should be viewed in addition to, and not as an alternative for, Century's reported results prepared in accordance with GAAP. In addition, because not all companies use identical calculations, Adjusted net income (loss), Adjusted earnings (loss) per share and Adjusted EBITDA included in this press release may not be comparable to similarly titled measures of other companies. Investors are encouraged to review the reconciliations in conjunction with the presentation of these non-GAAP financial measures. We do not provide a reconciliation of forward-looking Adjusted EBITDA because the corresponding forward-looking GAAP financial measures is not currently available and management cannot reliably predict all the necessary components of such forward-looking GAAP measures without unreasonable effort or expense due to the inherent difficulty of forecasting and quantifying certain amounts that are necessary for such a reconciliation, including adjustments that could be made for restructuring, the variability of our tax rate, the impact of foreign currency fluctuation, and other charges reflected in our historical results. The probable significance of each of these items is high and, based on historical experience, could be material.

**Forward-Looking Statements**

Forward-looking statements in this press release and statements made by Century Aluminum Company management on the quarterly conference call, for example, may include statements regarding: Our assessment of the aluminum market and aluminum prices (including premiums); Our assessment of prices of our key raw materials and supply and availability of those key raw materials, including alumina, coke, pitch and aluminum fluoride; Our assessment of power prices and availability, including any potential curtailments or other disruptions in the supply of power; The impact of the wars in Ukraine and in the

------

Middle East, including any sanctions and export controls targeting Russia and businesses or individuals tied to Russia; The future financial and operating performance of the Company and its subsidiaries; Our ability to successfully manage market risk and to control or reduce costs; Our plans and expectations with respect to future operations of the Company and its subsidiaries, including any plans and expectations to curtail or restart production, including the expected impact of any such actions on our future financial and operating performance; Our plans and expectations with regards to the restart of curtailed production at Mt. Holly including the timing, costs and benefits associated with restarting curtailed production; Our expectations as to the costs and benefits associated with Jamalco's operations; Any future impact of the equipment failure at Grundartangi and related events on our financial and operating performance; The timing of our ability to return our operating facilities to full and normal operation following equipment failure or other extraordinary events including our expectations as to timing for bringing our Grundartangi facility back to 100% and returning Jamalco to full and normal operation following the restart after Hurricane Melissa; Our ability to recover losses from our insurance, including with respect to losses incurred in connection with the October 2025 equipment failure at Grundartangi; The timing and terms of the data center being constructed on our former Hawesville site to commence commercial operations and our ability to monetize our minority interest therein; The impact of Section 232 and 301 and other trade actions, including tariffs or other trade remedies, the extent to which any such remedies may be changed, including through exclusions or exemptions, and the duration of any trade remedy; The impact of any new or changed law or regulation, including, without limitation, sanctions or other similar remedies or restrictions or any changes in interpretation of existing laws or regulations; Our anticipated tax liabilities, benefits or refunds including the realization of U.S. and certain foreign deferred tax assets and liabilities; Our ability to qualify for and realize potential tax benefits under the Inflation Reduction Act of 2022 and the anticipated amounts of such benefits; Our expectations regarding the availability of the $500 million DOE funding to our new smelter project, including our ability to raise additional capital through additional grants, incentives, subsidized loans and other debt and equity funding to support construction of a new aluminum smelter and our ability to successfully complete our new smelter project; The likelihood of our formalizing a joint venture with Emirates Global Aluminum for the new smelter project, and if we do, our ability to secure necessary power arrangements for the project on commercially reasonable terms, to timely complete construction of the project on budget, and to commence profitable operations; Our ability to access existing or future financing arrangements and the terms of any such future financing arrangements; Our ability to repay or refinance debt in the future; Our assessment and estimates of our pension and other postretirement liabilities, legal and environmental liabilities and other contingent liabilities; Our assessment of any future tax audits and expected outcomes; Negotiations with current labor unions or future representation by a union of our employees; Our assessment of any information technology-related risks, including the risk from cyberattacks or other data security breaches; Our plans and expectations regarding potential M&A and joint venture activity including our ability to consummate such transactions and our assessments of certain risks associated with the same, including, for example, unforeseen costs and expenses associated with unidentified liabilities, and difficulties integrating an acquired asset into our existing operations; and Our future business objectives, plans, strategies and initiatives, including our competitive position and prospects.

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| | |
|:---|:---|
| **INVESTOR CONTACT** | **MEDIA CONTACT** |
| Chad Rigg | Tawn Earnest |
| 312-696-3132 | 614-698-6351 |
| Source: Century Aluminum Company | Source: Century Aluminum Company |

---

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| | | | |
|:---|:---|:---|:---|
| **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** |
| **CONSOLIDATED STATEMENTS OF OPERATIONS** | **CONSOLIDATED STATEMENTS OF OPERATIONS** | **CONSOLIDATED STATEMENTS OF OPERATIONS** | **CONSOLIDATED STATEMENTS OF OPERATIONS** |
| (in millions, except per share amounts) | (in millions, except per share amounts) | (in millions, except per share amounts) | (in millions, except per share amounts) |
| (Unaudited) | (Unaudited) | (Unaudited) | (Unaudited) |
|  | **Three months ended** | **Three months ended** | **Three months ended** |
|  | **December 31,** | **September 30,** | **December 31,** |
|  | **2025** | **2025** | **2024** |
| Net sales |  |  |  |
| &nbsp;&nbsp;&nbsp;Related parties | $299.6 | $319.6 | $340.8 |
| &nbsp;&nbsp;&nbsp;Other customers | 334.1 | 312.6 | 290.1 |
| Total net sales | 633.7 | 632.2 | 630.9 |
| &nbsp;&nbsp;Cost of goods sold <sup>(1)</sup> | 543.7 | 557.3 | 565.4 |
| Gross profit <sup>(1)</sup> | 90.0 | 74.9 | 66.3 |
| &nbsp;&nbsp;&nbsp;Selling, general and administrative expenses | 35.5 | 17.9 | 14.8 |
| &nbsp;&nbsp;Other operating expenses - net | 13.8 | 1.1 | 2.2 |
| Operating income <sup>(1)</sup> | 40.7 | 55.9 | 49.3 |
| &nbsp;&nbsp;Interest expense - nonaffiliates | (10.6) | (11.5) | (10.1) |
| &nbsp;&nbsp;&nbsp;Interest expense - affiliates | (0.6) | (1.5) | (1.6) |
| &nbsp;&nbsp;&nbsp;Interest income | 2.7 | 2.8 | 0.4 |
| &nbsp;&nbsp;&nbsp;Net (loss) gain on forward and derivative contracts - nonaffiliates | (43.5) | (30.2) | 2.7 |
| &nbsp;&nbsp;&nbsp;Net gain (loss) on forward and derivative contracts - affiliates |  |  | (0.1) |
| &nbsp;&nbsp;&nbsp;Loss on early extinguishment of debt | (1.5) | (6.2) |  |
| &nbsp;&nbsp;Other expense - net <sup>(1)</sup> | (3.2) | (2.2) | (2.2) |
| (Loss) income before income taxes <sup>(1)</sup> | (16.0) | 7.1 | 38.4 |
| &nbsp;&nbsp;&nbsp;Income tax benefit (expense) | 12.3 | 1.1 | (0.2) |
| Income (loss) before equity in earnings of joint ventures <sup>(1)</sup> | (3.7) | 8.2 | 38.2 |
| &nbsp;&nbsp;&nbsp;Equity in earnings of joint ventures |  |  | 0.1 |
| Net (loss) income <sup>(1)</sup> | (3.7) | 8.2 | 38.3 |
| &nbsp;&nbsp;Net loss attributable to noncontrolling interests <sup>(1)</sup> | (5.5) | (6.7) | (7.7) |
| Net income attributable to Century stockholders | 1.8 | 14.9 | 46.0 |
| Less: Net income allocated to participating securities |  | 0.8 | 2.4 |
| Net income attributable to common stockholders | $1.8 | $14.1 | $43.6 |
| Net income attributable to Century stockholders per common share: | Net income attributable to Century stockholders per common share: | Net income attributable to Century stockholders per common share: | Net income attributable to Century stockholders per common share: |
| &nbsp;&nbsp;&nbsp;Basic | $0.02 | $0.15 | $0.46 |
| &nbsp;&nbsp;Diluted | $0.02 | $0.15 | $0.44 |
| Weighted-average common shares outstanding: |  |  |  |
| &nbsp;&nbsp;&nbsp;Basic | 96.9 | 93.3 | 93.0 |
| &nbsp;&nbsp;Diluted | 98.0 | 99.2 | 98.7 |
| <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* |

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&nbsp;&nbsp;&nbsp;&nbsp;

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| | | |
|:---|:---|:---|
| **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** |
| **CONSOLIDATED STATEMENTS OF OPERATIONS** | **CONSOLIDATED STATEMENTS OF OPERATIONS** | **CONSOLIDATED STATEMENTS OF OPERATIONS** |
| (in millions, except per share amounts) | (in millions, except per share amounts) | (in millions, except per share amounts) |
| (Unaudited) | (Unaudited) | (Unaudited) |
|  | **Twelve months ended December 31,** | **Twelve months ended December 31,** |
|  | **2025** | **2024** |
| Net sales |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Related parties | $1365.5 | $1312.1 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other customers | 1162.4 | 908.2 |
| Total net sales | 2527.9 | 2220.3 |
| &nbsp;&nbsp;&nbsp;&nbsp;Cost of goods sold <sup>(1)</sup> | 2271.5 | 2048.3 |
| Gross profit <sup>(1)</sup> | 256.4 | 172.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;Selling, general and administrative expenses | 79.9 | 56.8 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other operating expense - net | 18.4 | 6.8 |
| Operating income <sup>(1)</sup> | 158.1 | 108.4 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest expense - nonaffiliates | (41.9) | (36.4) |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest expense - affiliates | (5.8) | (6.7) |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest income | 9.2 | 2.1 |
| &nbsp;&nbsp;&nbsp;&nbsp;Net (loss) gain on forward and derivative contracts - nonaffiliates | (94.7) | 2.5 |
| &nbsp;&nbsp;&nbsp;&nbsp;Net gain (loss) on forward and derivative contracts - affiliates |  | (0.5) |
| &nbsp;&nbsp;&nbsp;&nbsp;Loss on early extinguishment of debt | (7.7) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Bargain purchase gain |  | 245.9 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other expense - net <sup>(1)</sup> | (14.5) | (5.5) |
| Income before income taxes <sup>(1)</sup> | 2.7 | 309.8 |
| &nbsp;&nbsp;&nbsp;&nbsp;Income tax benefit (expense) | 13.1 | (3.2) |
| Income before equity in earnings of joint ventures <sup>(1)</sup> | 15.8 | 306.6 |
| &nbsp;&nbsp;&nbsp;&nbsp;Equity in earnings of joint ventures |  | 0.1 |
| Net income <sup>(1)</sup> | 15.8 | 306.7 |
| &nbsp;&nbsp;Net loss attributable to noncontrolling interests <sup>(1)</sup> | (26.0) | (30.1) |
| Net income attributable to Century stockholders | 41.8 | 336.8 |
| Less: net income allocated to participating securities | 1.8 | 17.9 |
| Net income allocated to common stockholders | $40.0 | $318.9 |
| Net income attributable to Century stockholders per common share: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | $0.42 | $3.44 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | $0.42 | $3.27 |
| Weighted-average common shares outstanding: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | 94.2 | 92.8 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | 95.3 | 98.4 |
| &nbsp;&nbsp;&nbsp;&nbsp;<sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | &nbsp;&nbsp;&nbsp;&nbsp;<sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | &nbsp;&nbsp;&nbsp;&nbsp;<sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* |

---

------

---

| | | |
|:---|:---|:---|
| **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** |
| **CONSOLIDATED BALANCE SHEETS** | **CONSOLIDATED BALANCE SHEETS** | **CONSOLIDATED BALANCE SHEETS** |
| (in millions, except shares and per share amounts) | (in millions, except shares and per share amounts) | (in millions, except shares and per share amounts) |
| (Unaudited) | (Unaudited) | (Unaudited) |
|  | **December 31,** | **December 31,** |
|  | **2025** | **2024** |
| **ASSETS** |  |  |
| &nbsp;&nbsp;Cash and cash equivalents | $134.2 | $32.9 |
| &nbsp;&nbsp;Restricted cash | 1.4 | 2.8 |
| &nbsp;&nbsp;Accounts receivable - net  | 109.9 | 75.8 |
| &nbsp;&nbsp;Non-trade receivables<sup>(1)</sup> | 38.1 | 21.3 |
| &nbsp;&nbsp;Due from affiliates | 29.6 | 25.1 |
| &nbsp;&nbsp;Manufacturing credit receivable | 172.6 | 81.5 |
| &nbsp;&nbsp;Inventories | 519.6 | 539.0 |
| &nbsp;&nbsp;Derivative assets | 1.5 | 4.2 |
| &nbsp;&nbsp;Prepaid and other current assets | 24.4 | 28.3 |
| &nbsp;&nbsp; Total current assets | 1031.3 | 810.9 |
| &nbsp;&nbsp;Property, plant and equipment - net<sup>(1)</sup> | 1178.5 | 1157.4 |
| &nbsp;&nbsp;Manufacturing credit receivable - less current portion |  | 70.4 |
| &nbsp;&nbsp;Other assets <sup>(1)</sup> | 70.4 | 88.8 |
| &nbsp;&nbsp; TOTAL | $2280.2 | $2127.5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**LIABILITIES AND SHAREHOLDERS' EQUITY** |  |  |
| **LIABILITIES:** |  |  |
| &nbsp;&nbsp;Accounts payable, trade | $187.2 | $187.3 |
| &nbsp;&nbsp;Accrued compensation and benefits <sup>(1)</sup> | 74.4 | 50.8 |
| &nbsp;&nbsp;Due to affiliates | 70.8 | 109.3 |
| &nbsp;&nbsp;Accrued and other current liabilities <sup>(1)</sup> | 35.6 | 44.6 |
| &nbsp;&nbsp;Derivative liabilities | 58.2 | 4.4 |
| &nbsp;&nbsp;&nbsp;Carbon credit repurchase liability | 28.6 |  |
| &nbsp;&nbsp;Current maturities of long-term debt | 68.8 | 70.9 |
| &nbsp;&nbsp; Total current liabilities | 523.6 | 467.3 |
| &nbsp;&nbsp;Long-term debt | 479.5 | 447.3 |
| &nbsp;&nbsp;Long-term debt due to affiliates |  | 10.0 |
| &nbsp;&nbsp;Accrued benefits costs - less current portion <sup>(1)</sup> | 97.7 | 144.9 |
| &nbsp;&nbsp;Other liabilities | 105.1 | 92.6 |
| &nbsp;&nbsp;Deferred taxes | 58.4 | 71.2 |
| &nbsp;&nbsp;Asset retirement obligations - less current portion <sup>(1)</sup> | 75.3 | 81.3 |
| &nbsp;&nbsp; Total noncurrent liabilities | 816.0 | 847.3 |
| **SHAREHOLDERS' EQUITY:** |  |  |
| Series A Preferred stock ($0.01 par value, 5,000,000 shares authorized; none issued and outstanding at December 31, 2025; 49,715 issued and outstanding at December 31, 2024) |  |  |
| Common stock ($0.01 par value, 195,000,000 authorized; 106,155,528 issued and 98,969,007 outstanding at December 31, 2025; 100,475,086 issued and 93,288,565 outstanding at December 31, 2024) | 1.1 | 1.0 |
| Additional paid-in capital | 2571.5 | 2550.2 |
| Treasury stock, at cost | (86.3) | (86.3) |
| Accumulated other comprehensive loss | (55.2) | (103.3) |
| Accumulated deficit | (1605.5) | (1667.3) |

---

------

---

| | | |
|:---|:---|:---|
| **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** |
| **CONSOLIDATED BALANCE SHEETS (CONTINUED)** | **CONSOLIDATED BALANCE SHEETS (CONTINUED)** | **CONSOLIDATED BALANCE SHEETS (CONTINUED)** |
| (in millions, except shares and per share amounts) | (in millions, except shares and per share amounts) | (in millions, except shares and per share amounts) |
| (Unaudited) | (Unaudited) | (Unaudited) |
|  | **December 31,** | **December 31,** |
|  | **2025** | **2024** |
| &nbsp;&nbsp;&nbsp;&nbsp;Total Century shareholders' equity | 825.6 | 694.3 |
| Noncontrolling interest <sup>(1)</sup> | 115.0 | 118.6 |
| &nbsp;&nbsp;Total equity <sup>(1)</sup> | 940.6 | 812.9 |
| &nbsp;&nbsp;&nbsp;&nbsp;TOTAL | $2280.2 | $2127.5 |
| <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* |

---

------

---

| | | |
|:---|:---|:---|
| **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** |
| **CONSOLIDATED STATEMENTS OF CASH FLOWS** | **CONSOLIDATED STATEMENTS OF CASH FLOWS** | **CONSOLIDATED STATEMENTS OF CASH FLOWS** |
| (in millions) | (in millions) | (in millions) |
| (Unaudited) | (Unaudited) | (Unaudited) |
|  | **Twelve months ended December 31,** | **Twelve months ended December 31,** |
|  | **2025** | **2024** |
| CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
| &nbsp;&nbsp;Net income <sup>(1)</sup> | $15.8 | $306.7 |
| &nbsp;&nbsp;&nbsp;Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities | &nbsp;&nbsp;&nbsp;Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities | &nbsp;&nbsp;&nbsp;Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities |
| &nbsp;&nbsp;&nbsp;&nbsp;Unrealized loss (gain) on derivative instruments | 62.8 | (5.0) |
| &nbsp;&nbsp;&nbsp;&nbsp;Depreciation, depletion and amortization <sup>(1)</sup> | 91.8 | 86.7 |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation | 47.0 | 11.3 |
| &nbsp;&nbsp;&nbsp;&nbsp;Loss on early extinguishment of debt | 7.7 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Change in deferred tax provision | (13.7) | (1.3) |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on sale of assets |  | (2.3) |
| &nbsp;&nbsp;&nbsp;&nbsp;Bargain purchase gain |  | (245.9) |
| &nbsp;&nbsp;&nbsp;&nbsp;Force majeure settlement |  | (12.3) |
| &nbsp;&nbsp;&nbsp;&nbsp;Lower of cost or NRV inventory adjustment | 8.6 | 2.3 |
| &nbsp;&nbsp;&nbsp;&nbsp;Net periodic benefit cost <sup>(1)</sup> | 12.1 | 15.7 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other non-cash items - net <sup>(1)</sup> | 7.6 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Change in operating assets and liabilities, net of acquisition: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable - net | (24.0) | (10.9) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-trade receivables <sup>(1)</sup> | (2.1) | 15.9 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Manufacturing credit receivable | (20.7) | (92.6) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due from affiliates | (4.5) | (4.9) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories | 10.8 | (64.3) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepaid and other current assets | 3.8 | 1.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable, trade | 0.1 | (50.6) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due to affiliates | (13.2) | 26.1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued and other current liabilities <sup>(1)</sup> | 11.6 | 4.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ravenswood retiree medical settlement | (2.0) | (2.0) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PBGC settlement | (2.4) | (0.3) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other - net <sup>(1)</sup> | (13.5) | (1.9) |
| &nbsp;&nbsp;&nbsp;Net cash provided by (used in) operating activities | 183.6 | (24.6) |
| CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Capital expenditures | (98.8) | (82.3) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from sale of property, plant and equipment |  | 2.3 |
| &nbsp;&nbsp;&nbsp;Net cash used in investing activities | (98.8) | (80.0) |
| CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayment of Senior Notes due 2028 | (250.0) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Early redemption premiums paid | (4.7) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from issuance of Senior Notes due 2032 | 400.0 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Payment of deferred financing fees | (6.3) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Borrowings under revolving credit facilities | 883.2 | 735.4 |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayments under revolving credit facilities | (876.1) | (705.1) |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayments under Iceland term facility |  | (1.2) |
| &nbsp;&nbsp;&nbsp;&nbsp;Borrowings under Grundartangi casthouse debt facility |  | 25.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayments under Grundartangi casthouse debt facility | (123.2) | (6.8) |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayments under Vlissingen facility agreement | (10.0) |  |

---

------

---

| | | |
|:---|:---|:---|
| **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** |
| **CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)** | **CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)** | **CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)** |
| (in millions) | (in millions) | (in millions) |
| (Unaudited) | (Unaudited) | (Unaudited) |
|  | **Twelve months ended December 31,** | **Twelve months ended December 31,** |
|  | **2025** | **2024** |
| &nbsp;&nbsp;&nbsp;&nbsp;Contributions from JV partner | 19.9 | 12.7 |
| &nbsp;&nbsp;&nbsp;&nbsp;Payments related to tax withholding for share-based compensation | (17.5) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Carbon credit proceeds | 28.1 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Carbon credit repayments | (28.3) | (10.0) |
| &nbsp;&nbsp;&nbsp;Net cash provided by financing activities | 15.1 | 50.0 |
| CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH | 99.9 | (54.6) |
| Cash, cash equivalents and restricted cash, beginning of year | 35.7 | 90.3 |
| Cash, cash equivalents and restricted cash, end of year | $135.6 | $35.7 |
| <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* | <sup>(1)</sup> *The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.* |

---

------

**CENTURY ALUMINUM COMPANY**

**SELECTED OPERATING DATA**

(in millions, except shipments)

(Unaudited)

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **SHIPMENTS - PRIMARY ALUMINUM**<sup>(1)</sup> | **SHIPMENTS - PRIMARY ALUMINUM**<sup>(1)</sup> | **SHIPMENTS - PRIMARY ALUMINUM**<sup>(1)</sup> | **SHIPMENTS - PRIMARY ALUMINUM**<sup>(1)</sup> | **SHIPMENTS - PRIMARY ALUMINUM**<sup>(1)</sup> | | |
| | **United States** | **United States** | **Iceland** | **Iceland** | **Total** | **Total** |
| | **Tonnes** | **Sales** | **Tonnes** | **Sales** | **Tonnes** | **Sales** |
| **2025** |  |  |  |  |  |  |
| 4th Quarter | 91885 | $413.1 | 48372 | $138.3 | 140257 | $551.4 |
| 3rd Quarter | 90703 | $367.6 | 71739 | $196.3 | 162442 | $563.9 |
| 2nd Quarter | 94519 | $324.4 | 81222 | $233.7 | 175741 | $558.1 |
| 1st Quarter | 94601 | $306.6 | 74071 | $217.3 | 168672 | $523.9 |
| Full Year 2025 | 371708 | $1411.7 | 275404 | $785.6 | 647112 | $2197.3 |
| **2024** |  |  |  |  |  |  |
| Full Year 2024 | 378193 | $1076.6 | 299774 | $793.3 | 677967 | $1869.9 |

---

<sup>(1)</sup> Excludes scrap aluminum sales, purchased aluminum and alumina sales.

------

**CENTURY ALUMINUM COMPANY**

**RECONCILIATION OF NON-GAAP FINANCIAL MEASURES**

(in millions, except per share amounts)

(Unaudited)

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended** | **Three months ended** | **Three months ended** | **Three months ended** |
| | **December 31, 2025** | **December 31, 2025** | **September 30, 2025** | **September 30, 2025** |
| | **$MM** | **EPS** | **$MM** | **EPS** |
| **Net income attributable to Century stockholders** | $1.8 | $0.02 | $14.9 | $0.16 |
| &nbsp;&nbsp;&nbsp;Less: net income allocated to participating securities |  |  | 0.8 | 0.01 |
| &nbsp;&nbsp;&nbsp;Net income allocated to common stockholders | 1.8 | 0.02 | 14.1 | 0.15 |
| &nbsp;&nbsp;&nbsp;Lower of cost or NRV inventory adjustment | 9.8 | 0.09 | 0.7 | 0.01 |
| &nbsp;&nbsp;&nbsp;Unrealized loss on derivative contracts | 27.6 | 0.27 | 20.7 | 0.19 |
| &nbsp;&nbsp;&nbsp;Loss on extinguishment of debt | 1.5 | 0.01 | 6.2 | 0.06 |
| &nbsp;&nbsp;&nbsp;Share-based compensation | 32.6 | 0.32 | 9.7 | 0.09 |
| &nbsp;&nbsp;Iceland casthouse inefficiency<sup>(1)</sup>, net of tax |  |  | 0.6 | 0.01 |
| &nbsp;&nbsp;Iceland equipment failure<sup>(2)</sup>, net of tax | 30.9 | 0.30 | 4.2 | 0.04 |
| &nbsp;&nbsp;Sebree river lock closure<sup>(3)</sup> |  |  | 0.8 | 0.01 |
| &nbsp;&nbsp;&nbsp;Sebree storm damage repairs |  |  | 0.3 |  |
| &nbsp;&nbsp;Jamalco hurricane impact<sup>(4)</sup> | 5.7 | 0.06 |  |  |
| &nbsp;&nbsp;&nbsp;Hawesville inventory write-down | 9.9 | 0.10 |  |  |
| &nbsp;&nbsp;Mt. Holly restart<sup>(5)</sup> | 8.0 | 0.08 | 0.5 |  |
| &nbsp;&nbsp;&nbsp;Mt. Holly emergency energy charges | 0.4 |  | 0.1 |  |
| **Adjusted net income attributable to Century stockholders** | $128.2 | $1.25 | $57.9 | $0.56 |

---

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(1)</sup>Iceland casthouse off-spec inventory

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(2)</sup>Represents impact of business interruption as a result of equipment failure at Grundartangi, to the extent expected to be covered by our business interruption insurance

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(3)</sup>Represents incremental costs associated with transporting raw materials due to river lock closure at Sebree

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(4)</sup>Represents Century's 55% incremental and fixed costs incurred while alumina production at Jamalco was restarted after Hurricane Melissa

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(5)</sup>Represents incremental costs associated with the Mt. Holly restart project

------

---

| | | |
|:---|:---|:---|
| | **Three months ended** | **Three months ended** |
| | **December 31, 2025** | **September 30, 2025** |
| **Net income attributable to Century stockholders** | $1.8 | $14.9 |
| Add: Net loss attributable to noncontrolling interests<sup>(1)</sup> | (5.5) | (6.7) |
| **Net (loss) income**<sup>(1)</sup> | (3.7) | 8.2 |
| &nbsp;&nbsp;Interest expense - nonaffiliates | 10.6 | 11.5 |
| &nbsp;&nbsp;Interest expense - affiliates | 0.6 | 1.5 |
| &nbsp;&nbsp;Interest income | (2.7) | (2.8) |
| &nbsp;&nbsp;Net loss on forward and derivative contracts - nonaffiliates | 43.5 | 30.2 |
| &nbsp;&nbsp;Loss on early extinguishment of debt | 1.5 | 6.2 |
| &nbsp;&nbsp;Other expense - net | 3.2 | 2.2 |
| &nbsp;&nbsp;Income tax benefit | (12.3) | (1.1) |
| **Operating income**<sup>(1)</sup> | 40.7 | 55.9 |
| &nbsp;&nbsp;Depreciation, depletion and amortization<sup>(1)</sup> | 21.8 | 22.7 |
| &nbsp;&nbsp;&nbsp;Lower of cost or NRV inventory adjustment | 9.8 | 0.7 |
| &nbsp;&nbsp;&nbsp;Share-based compensation | 32.6 | 9.7 |
| &nbsp;&nbsp;Iceland casthouse inefficiency<sup>(2)</sup> |  | 0.8 |
| &nbsp;&nbsp;Iceland equipment failure<sup>(3)</sup> | 38.6 | 5.3 |
| &nbsp;&nbsp;Sebree river lock closure<sup>(4)</sup> |  | 0.8 |
| &nbsp;&nbsp;&nbsp;Sebree storm damage repairs |  | 0.3 |
| &nbsp;&nbsp;Jamalco hurricane impact<sup>(1)(5)</sup> | 10.4 |  |
| &nbsp;&nbsp;&nbsp;Hawesville inventory write-down | 9.9 |  |
| &nbsp;&nbsp;Mt. Holly restart<sup>(6)</sup> | 8.0 | 0.5 |
| &nbsp;&nbsp;Mt. Holly emergency energy charges | 0.4 | 0.1 |
| **Adjusted EBITDA**<sup>(1)</sup> | 172.2 | 96.8 |
| Less: Adjusted EBITDA attributable to noncontrolling interests<sup>(1)</sup> | 1.6 | (4.3) |
| **Adjusted EBITDA attributable to Century stockholders** | $170.6 | $101.1 |

---

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(1)</sup>The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(2)</sup>Iceland casthouse off-spec inventory

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(3)</sup>Represents impact of business interruption as a result of equipment failure at Grundartangi

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(4)</sup>Represents incremental costs associated with transporting raw materials due to river lock closure at Sebree

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(5)</sup>Represents incremental and fixed costs incurred while alumina production at Jamalco was restarted after Hurricane Melissa

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(6)</sup>Represents incremental costs associated with the Mt. Holly restart project

------

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Twelve months ended** | **Twelve months ended** | **Twelve months ended** | **Twelve months ended** |
| | **December 31, 2025** | **December 31, 2025** | **December 31, 2024** | **December 31, 2024** |
| | **$MM** | **EPS** | **$MM** | **EPS** |
| **Net income attributable to Century stockholders** | $41.8 | $0.44 | $336.8 | $3.27 |
| &nbsp;&nbsp;&nbsp;Less: net income allocated to participating securities | 1.8 | 0.02 | 17.9 | 0.20 |
| &nbsp;&nbsp;&nbsp;Net income allocated to common stockholders | 40.0 | 0.42 | 318.9 | 3.07 |
| &nbsp;&nbsp;&nbsp;Lower of cost or NRV inventory adjustment | 10.5 | 0.10 | (6.4) | (0.07) |
| &nbsp;&nbsp;&nbsp;Unrealized loss on derivative contracts, net of tax | 62.8 | 0.60 | (5.5) | (0.06) |
| &nbsp;&nbsp;&nbsp;Bargain purchase gain |  |  | (245.9) | (2.65) |
| &nbsp;&nbsp;&nbsp;Loss on extinguishment of debt | 7.7 | 0.07 |  |  |
| &nbsp;&nbsp;&nbsp;Iceland inventory adjustment, net of tax | 14.5 | 0.15 |  |  |
| &nbsp;&nbsp;&nbsp;Share-based compensation | 47.0 | 0.46 | 15.5 | 0.17 |
| &nbsp;&nbsp;Iceland casthouse inefficiency<sup>(1)</sup>, net of tax | 3.5 | 0.04 |  |  |
| &nbsp;&nbsp;Iceland equipment failure<sup>(2)</sup>, net of tax | 37.3 | 0.36 |  |  |
| &nbsp;&nbsp;Jamalco hurricane impact<sup>(3)(4)</sup> | 5.7 | 0.06 | 6.9 | 0.07 |
| &nbsp;&nbsp;&nbsp;Jamalco equipment failure |  |  | 4.7 | 0.05 |
| &nbsp;&nbsp;Sebree river lock closure<sup>(5)</sup> | 0.8 | 0.01 |  |  |
| &nbsp;&nbsp;&nbsp;Sebree storm damage repairs | 1.1 | 0.01 |  |  |
| &nbsp;&nbsp;&nbsp;Hawesville inventory write-down | 9.9 | 0.10 |  |  |
| &nbsp;&nbsp;Mt. Holly restart<sup>(6)</sup> | 8.5 | 0.08 |  |  |
| &nbsp;&nbsp;&nbsp;Mt. Holly emergency energy charges | 4.5 | 0.04 |  |  |
| &nbsp;&nbsp;&nbsp;Impact of preferred and convertible shares |  | (0.04) | 13.2 | 0.14 |
| **Adjusted net income attributable to Century stockholders** | $253.8 | $2.46 | $101.4 | $0.72 |

---

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(1)</sup>Iceland casthouse off-spec inventory

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(2)</sup>Represents impact of business interruption as a result of equipment failure at Grundartangi, to the extent expected to be covered by our business interruption insurance

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(3)</sup>In 2024, represents incremental costs incurred due to the impact of Hurricane Beryl at Jamalco, including repair costs of the damaged port, costs of alternative shipping arrangements and fixed costs incurred while alumina production was impeded

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(4)</sup>In 2025, represents incremental and fixed costs incurred while alumina production at Jamalco was restarted after Hurricane Melissa

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(5)</sup>Represents incremental costs associated with transporting raw materials due to river lock closure at Sebree

&nbsp;&nbsp;&nbsp;&nbsp;<sup>(6)</sup>Represents incremental costs associated with the Mt. Holly restart project

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| | | |
|:---|:---|:---|
| | **Twelve months ended** | **Twelve months ended** |
| | **December 31, 2025** | **December 31, 2024** |
| **Net income attributable to Century stockholders** | $41.8 | $336.8 |
| Add: Net loss attributable to noncontrolling interests<sup>(1)</sup> | (26.0) | (30.1) |
| **Net income**<sup>(1)</sup> | 15.8 | 306.7 |
| &nbsp;&nbsp;Interest expense - nonaffiliates | 41.9 | 36.4 |
| &nbsp;&nbsp;Interest expense - affiliates | 5.8 | 6.7 |
| &nbsp;&nbsp;Interest income | (9.2) | (2.1) |
| &nbsp;&nbsp;Net loss on forward and derivative contracts - nonaffiliates | 94.7 | (2.5) |
| &nbsp;&nbsp;Net (gain) loss on forward and derivative contracts - affiliates |  | 0.5 |
| &nbsp;&nbsp;Loss on early extinguishment of debt | 7.7 |  |
| &nbsp;&nbsp;Bargain purchase gain |  | (245.9) |
| &nbsp;&nbsp;Other expense - net<sup>(1)</sup> | 14.5 | 5.5 |
| &nbsp;&nbsp;Income tax benefit | (13.1) | 3.2 |
| &nbsp;&nbsp;Equity in losses of joint ventures |  | (0.1) |
| **Operating income**<sup>(1)</sup> | 158.1 | 108.4 |
| &nbsp;&nbsp;Depreciation, depletion and amortization<sup>(1)</sup> | 93.5 | 98.0 |
| &nbsp;&nbsp;&nbsp;Lower of cost or NRV inventory adjustment | 10.5 | (6.4) |
| &nbsp;&nbsp;&nbsp;Share-based compensation | 47.0 | 15.5 |
| &nbsp;&nbsp;Iceland equipment failure<sup>(2)</sup> | 46.6 |  |
| &nbsp;&nbsp;Jamalco hurricane impact<sup>(3)</sup> | 10.4 | 12.6 |
| &nbsp;&nbsp;Iceland inventory adjustment<sup>(4)</sup> | 18.1 |  |
| &nbsp;&nbsp;&nbsp;Hawesville inventory write-down | 9.9 |  |
| &nbsp;&nbsp;Iceland casthouse inefficiency<sup>(5)</sup> | 4.4 |  |
| &nbsp;&nbsp;&nbsp;Jamalco equipment failure |  | 8.5 |
| &nbsp;&nbsp;Sebree river lock closure<sup>(6)</sup> | 0.8 |  |
| &nbsp;&nbsp;&nbsp;Sebree storm damage repairs | 1.1 |  |
| &nbsp;&nbsp;Mt. Holly restart<sup>(7)</sup> | 8.5 |  |
| &nbsp;&nbsp;&nbsp;Mt. Holly emergency energy charges | 4.5 |  |
| **Adjusted EBITDA**<sup>(1)</sup> | 413.4 | 236.6 |
| Less: Adjusted EBITDA attributable to noncontrolling interests<sup>(1)</sup> | (11.7) | (7.6) |
| **Adjusted EBITDA attributable to Century stockholders** | $425.1 | $244.2 |

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&nbsp;&nbsp;&nbsp;&nbsp;(1)The indicated line items reflect a change in our historical financial statements related to the consolidation of certain assets used by our Jamalco joint venture. We previously consolidated such assets on a proportionate basis, but going forward we will fully consolidate such assets in our financial statements and have reflected this for all periods presented. This change does not have any impact on Net income attributable to Century stockholders or any of the non-GAAP financial measures presented herein. Additional information will be included in our Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;(2)Represents impact of business interruption as a result of equipment failure at Grundartangi, to the extent expected to be covered by our business interruption insurance

&nbsp;&nbsp;&nbsp;&nbsp;(3)Represents incremental and fixed costs incurred while alumina production at Jamalco was restarted after Hurricane Melissa

&nbsp;&nbsp;&nbsp;&nbsp;(4)Non-cash intercompany alumina adjustment

&nbsp;&nbsp;&nbsp;&nbsp;(5)Iceland casthouse off-spec inventory

&nbsp;&nbsp;&nbsp;&nbsp;(6)Represents incremental costs associated with transporting raw materials due to river lock closure at Sebree

&nbsp;&nbsp;&nbsp;&nbsp;(7)Represents incremental costs associated with the Mt. Holly restart project

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