# EDGAR Filing Document

**Accession Number:** 0000949157
**File Stem:** 0001628280-26-032082
**Filing Date:** 2026-5
**Character Count:** 30920
**Document Hash:** 20812fb4192708ef7743a60597ef170f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-032082.hdr.sgml**: 20260507

**ACCESSION NUMBER**: 0001628280-26-032082

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20260507

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

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260507

**DATE AS OF CHANGE**: 20260507

**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:** 26953135

**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-20260507

**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): May 7, 2026

![Logo gif.gif](cenx-20260507_g1.gif)

**Century Aluminum Company** 

(Exact Name of Registrant as Specified in Charter)

---

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

---

---

| | |
|:---|:---|
| **One South Wacker Drive** | **60606** |
| **Suite 1000** | (Zip Code) |
| **Chicago, Illinois** |  |
| (Address of Principal Executive Offices) |  |
| **(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:

---

| | | |
|:---|:---|:---|
| 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. ☐

------

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

On May 7, 2026, Century Aluminum Company (the "Company") issued a press release announcing its results of operations for quarter ended March 31, 2026. 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, May 7, 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](a20260331q1ex991earningsre.htm)</u> | <u>[Press Release dated May 7, 2026](a20260331q1ex991earningsre.htm)</u> |
| 104 | &nbsp;&nbsp;&nbsp;&nbsp;<br>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: | May 7, 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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**&nbsp;&nbsp;&nbsp;&nbsp;<u>Exhibit 99.1</u>**

![logogif.gif](logogif.gif)

**Century Aluminum Company Reports First Quarter 2026 Results**

Chicago, May 7, 2026 (GLOBE NEWSWIRE) -- Century Aluminum Company (NASDAQ: CENX) today announced its first quarter 2026 results.

**<u>First Quarter 2026 Financial Results</u>**

---

| | | |
|:---|:---|:---|
| **<u>$MM (except shipments and per share data)</u>** | **<u>$MM (except shipments and per share data)</u>** | **<u>$MM (except shipments and per share data)</u>** |
| | **Q1 2026** | **Q4 2025** |
| Aluminum shipments (tonnes) | 122865 | 140257 |
| Net sales | $649.2 | $633.7 |
| Net income attributable to Century | $337.5 | $1.8 |
| Diluted earnings per share attributable to Century | $3.23 | $0.02 |
| Adjusted net income attributable to Century<sup>(1)</sup> | $170.7 | $128.2 |
| Adjusted earnings per common share<sup>(1)</sup> | $1.63 | $1.25 |
| Adjusted EBITDA attributable to Century<sup>(1)</sup> | $231.4 | $170.6 |
| <u>Notes:</u> |  |  |
| <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. |

---

**<u>Business Highlights</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Net sales of $649.2 million increased sequentially

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Achieved adjusted EBITDA attributable to Century of $231.4 million

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Received insurance proceeds totaling $83 million to date related to Iceland equipment failure

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Initiated expansion of last 90 pots at Mt. Holly and restart of Line 2 at Grundartangi in April 2026

Net sales for the first quarter ended March 31, 2026 increased by $15.5 million sequentially primarily driven by an increase in realized metal prices, despite lower shipments following the first full quarter of Iceland line 2 equipment failure in late October 2025 and lower third-party alumina sales.

Century reported Net income attributable to Century of $337.5 million for the first quarter of 2026, a $335.7 million increase sequentially. The increase in net earnings during the first quarter of 2026 was primarily attributable to a one-time gain on sale of Hawesville of $287.9 million, a gain on insurance proceeds related to Iceland equipment failure of $33.0 million, favorable realized LME and regional premium prices, partially offset by unfavorable power price realization due to extreme winter weather in the United States and unfavorable raw material price realization.

First quarter results were also impacted by $166.8 million of net exceptional items, in particular, the gains described above; $48.1 million of unrealized losses on derivative instruments, net of tax; $60.0 million related to equipment failures in Iceland, net of tax; $5.9 million related to the impact of Hurricane Melissa on Jamalco's operations; $13.3 million in emergency energy charges related to extreme winter weather at Mt. Holly; $9.4 million of share-based compensation; Mt. Holly expansion project expenses of $7.5 million and Hawesville inventory write-down of $3.3 million. Therefore, Century reported an Adjusted net income attributable to Century of $170.7 million for the first quarter of 2026, a $42.5 million increase sequentially.

Adjusted EBITDA attributable to Century for the first quarter of 2026 was $231.4 million. This was an increase of $60.8 million from the prior quarter, mainly from favorable realized metal prices, sales mix and operating expenses, partially offset by unfavorable power price and raw material price realization.

Century's liquidity position at March 31, 2026 was $611.0 million, comprised of cash and cash equivalents of $244.1 million, restricted cash proceeds from the sale of Hawesville of $88.1 million, and $278.8 million in combined borrowing availability.

------

**Second Quarter 2026 Outlook**

The Company expects second quarter Adjusted EBITDA to range between $315 to $335 million primarily driven by higher realized LME and regional premiums and the expansion at Mt. Holly.

**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.

**Cautionary Statement**

------

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 Aluminium 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.

Where we express an expectation or belief as to future events or results, such expectation or belief is expressed in good faith and believed to have a reasonable basis. However, our forward-looking statements are based on current expectations and assumptions that are subject to risks and uncertainties which may cause actual results to differ materially from future results expressed, projected or implied by those forward-looking statements. Important factors that could cause actual results and events to differ from those described in such forward-looking statements can be found in the risk factors and forward-looking statements cautionary language contained in our Annual Report on Form 10-K, our Quarterly Reports on Form 10-Q and in other filings made with the Securities and Exchange Commission. Although we have attempted to identify those material factors that could cause actual results or events to differ from those described in such forward-looking statements, there may be other factors that could cause actual results or events to differ from those anticipated, estimated or intended. Many of these factors are beyond our ability to control or predict. Given these uncertainties, the reader is cautioned not to place undue reliance on our forward-looking statements. We undertake no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events, or otherwise.

------

---

| | | |
|:---|:---|:---|
| **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) |
|  | **Three months ended** | **Three months ended** |
|  | **March 31,** | **December 31,** |
|  | **2026** | **2025** |
| Net sales |  |  |
| &nbsp;&nbsp;&nbsp;Related parties | $305.9 | $299.6 |
| &nbsp;&nbsp;&nbsp;Other customers | 343.3 | 334.1 |
| Total net sales | 649.2 | 633.7 |
| Cost of goods sold | 530.4 | 543.1 |
| Gross profit | 118.8 | 90.6 |
| &nbsp;&nbsp;&nbsp;Selling, general and administrative expenses | 25.8 | 35.5 |
| &nbsp;&nbsp;&nbsp;Gain on the sale of Hawesville | (287.9) |  |
| &nbsp;&nbsp;&nbsp;Other operating expenses - net | 6.9 | 13.8 |
| Operating income | 374.0 | 41.3 |
| &nbsp;&nbsp;&nbsp;Interest expense - nonaffiliates | (9.9) | (10.6) |
| &nbsp;&nbsp;&nbsp;Interest expense - affiliates | (0.6) | (0.6) |
| &nbsp;&nbsp;&nbsp;Interest income | 3.1 | 2.7 |
| &nbsp;&nbsp;&nbsp;Net loss on forward and derivative contracts - nonaffiliates | (65.3) | (43.5) |
| &nbsp;&nbsp;&nbsp;Loss on early extinguishment of debt |  | (1.5) |
| &nbsp;&nbsp;&nbsp;Gain on insurance proceeds - net | 33.0 |  |
| &nbsp;&nbsp;&nbsp;Other expense - net | (5.5) | (3.2) |
| Income (loss) before income taxes | 328.8 | (15.4) |
| &nbsp;&nbsp;&nbsp;Income tax (expense) benefit | (1.8) | 12.3 |
| Net income (loss) | 327.0 | (3.1) |
| &nbsp;&nbsp;Net loss attributable to noncontrolling interests | (10.5) | (4.9) |
| Net income attributable to Century | 337.5 | 1.8 |
| Net income attributable to Century per common share: | Net income attributable to Century per common share: |  |
| &nbsp;&nbsp;&nbsp;Basic | $3.41 | $0.02 |
| &nbsp;&nbsp;Diluted | $3.23 | $0.02 |
| Weighted-average common shares outstanding: |  |  |
| &nbsp;&nbsp;&nbsp;Basic | 99.0 | 96.9 |
| &nbsp;&nbsp;Diluted | 104.6 | 98.0 |

---

------

---

| | | |
|:---|:---|:---|
| **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** | **CENTURY ALUMINUM COMPANY** |
| **CONSOLIDATED BALANCE SHEETS** | **CONSOLIDATED BALANCE SHEETS** | **CONSOLIDATED BALANCE SHEETS** |
| (in millions, except per share amounts) | (in millions, except per share amounts) | (in millions, except per share amounts) |
| (Unaudited) | (Unaudited) | (Unaudited) |
|  | **March 31, 2026** | **December 31, 2025** |
| **ASSETS** |  |  |
| Cash and cash equivalents | $244.1 | $134.2 |
| Restricted cash | 89.5 | 1.4 |
| Accounts receivable - net | 111.0 | 109.9 |
| Non-trade receivables | 41.8 | 38.1 |
| Due from affiliates | 52.6 | 29.6 |
| Manufacturing credit receivable | 173.3 | 172.6 |
| Inventories | 512.1 | 519.6 |
| Derivative assets | 6.8 | 1.5 |
| Prepaid and other current assets | 23.3 | 24.4 |
| &nbsp;&nbsp;Total current assets | 1254.5 | 1031.3 |
| Property, plant and equipment - net | 1205.1 | 1167.6 |
| Manufacturing credit receivable - less current portion | 24.9 |  |
| Other assets | 170.4 | 70.4 |
| &nbsp;&nbsp;Total assets | $2654.9 | $2269.3 |
| **LIABILITIES AND SHAREHOLDERS' EQUITY** |  |  |
| **LIABILITIES:** |  |  |
| Accounts payable, trade | $196.1 | $187.2 |
| Accrued compensation and benefits | 71.8 | 74.4 |
| Due to affiliates | 51.0 | 70.8 |
| Accrued and other current liabilities | 27.0 | 35.6 |
| Derivative liabilities | 104.0 | 58.2 |
| Carbon credit repurchase liability | 28.7 | 28.6 |
| Current maturities of long-term debt | 66.1 | 68.8 |
| &nbsp;&nbsp;Total current liabilities | 544.7 | 523.6 |
| Long-term debt | 479.8 | 479.5 |
| Accrued benefits costs - less current portion | 97.5 | 97.7 |
| Other liabilities | 116.9 | 104.9 |
| Deferred taxes | 60.6 | 58.4 |
| Asset retirement obligations - less current portion | 70.9 | 75.3 |
| &nbsp;&nbsp;Total noncurrent liabilities | 825.7 | 815.8 |
| **SHAREHOLDERS' EQUITY:** |  |  |
| Series A Preferred stock ($0.01 par value, 5,000,000 shares authorized; no shares issued or outstanding at March 31, 2026 and December 31, 2025) |  |  |
| Common stock ($0.01 value, 195,000,000 authorized; 106,160,568 issued and 98,974,047 outstanding at March 31, 2026; 106,155,528 issued and 98,969,007 outstanding at December 31, 2025) | 1.1 | 1.1 |
| Additional paid-in capital | 2572.7 | 2571.5 |
| Treasury stock, at cost | (86.3) | (86.3) |
| Accumulated other comprehensive loss | (48.5) | (55.2) |
| Accumulated deficit | (1288.1) | (1625.5) |
| Total shareholders' equity | 1150.9 | 805.6 |
| Noncontrolling interest | 133.6 | 124.3 |
| &nbsp;&nbsp;Total equity | 1284.5 | 929.9 |
| &nbsp;&nbsp;Total liabilities and equity | $2654.9 | $2269.3 |

---

------

---

| | | |
|:---|:---|:---|
| **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) |
|  | **Three months ended March 31,** | **Three months ended March 31,** |
|  | **2026** | **2025** |
| CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net income | $327 | $22.4 |
| &nbsp;&nbsp;&nbsp;&nbsp;Adjustments to reconcile Net income to net cash provided by operating activities: | &nbsp;&nbsp;&nbsp;&nbsp;Adjustments to reconcile Net income to net cash provided by operating activities: | &nbsp;&nbsp;&nbsp;&nbsp;Adjustments to reconcile Net income to net cash provided by operating activities: |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized loss on derivative instruments | 48.0 | 3.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation, depletion and amortization | 22.7 | 24.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation | 9.4 | 1.9 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net periodic benefit cost | 9.5 | 2.8 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Change in deferred tax provision | 2.2 | 1.2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on the sale of Hawesville | (287.9) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on insurance proceeds received for property damage | (1.0) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other non-cash items - net | 0.9 | (4.7) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Change in operating assets and liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable | (8.9) | (12.5) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-trade receivables | 1.0 | 15.4 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Manufacturing credit receivable | (25.6) | (20.7) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due from affiliates | (23.0) | 16.7 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories | 6.8 | (0.1) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepaid and other current assets | 1.1 | 4.0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable, trade | 24.7 | 20.8 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due to affiliates | (19.8) | 12.2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued and other current liabilities | (11.0) | (13.9) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other - net | (7.7) | (0.2) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by operating activities | 68.4 | 72.3 |
| CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Purchase of property, plant and equipment | (74.8) | (21.2) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from the sale of Hawesville | 200.0 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Insurance proceeds received for property damage | 5.0 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by (used in) investing activities | 130.2 | (21.2) |
| CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Borrowings under revolving credit facilities | 160.6 | 257.6 |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayments under revolving credit facilities | (155.7) | (300.1) |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayments of Industrial Revenue Bonds | (7.8) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayments under Grundartangi casthouse debt facility |  | (2.3) |
| &nbsp;&nbsp;&nbsp;&nbsp;Payment of incentive compensation withholding taxes | (4.7) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Contributions from joint venture partner | 7.0 | 5.7 |
| &nbsp;&nbsp;&nbsp;&nbsp;Net cash used in financing activities | (0.6) | (39.1) |
| CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | 198.0 | 12.0 |
| Cash, cash equivalents and restricted cash, beginning of period | 135.6 | 35.7 |
| Cash, cash equivalents and restricted cash, end of period | $333.6 | $47.7 |

---

------

**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 $** |
| **2026** |  |  |  |  |  |  |
| 1st Quarter | 93668 | $494.3 | 29197 | $87.3 | 122865 | $581.6 |
| **2025** |  |  |  |  |  |  |
| 4th Quarter | 91885 | $413.1 | 48372 | $138.3 | 140257 | $551.4 |
| 1st Quarter | 94601 | $306.6 | 74071 | $217.3 | 168672 | $523.9 |

---

 <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)

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| | | | | |
|:---|:---|:---|:---|:---|
| | **Three months ended** | **Three months ended** | **Three months ended** | **Three months ended** |
| | **March 31, 2026** | **March 31, 2026** | **December 31, 2025** | **December 31, 2025** |
| | **$MM** | **EPS** | **$MM** | **EPS** |
| **Net income attributable to Century** | $337.5 | $3.23 | $1.8 | $0.02 |
| &nbsp;&nbsp;&nbsp;Lower of cost or NRV inventory adjustment |  |  | 9.8 | 0.09 |
| &nbsp;&nbsp;Unrealized loss on derivative contracts, net of tax | 48.1 | 0.46 | 27.6 | 0.27 |
| &nbsp;&nbsp;Loss on extinguishment of debt |  |  | 1.5 | 0.01 |
| &nbsp;&nbsp;&nbsp;Share-based compensation | 9.4 | 0.09 | 32.6 | 0.32 |
| &nbsp;&nbsp;&nbsp;Gain on the sale of Hawesville | (287.9) | (2.75) |  |  |
| &nbsp;&nbsp;&nbsp;Hawesville inventory write-down | 3.3 | 0.03 | 9.9 | 0.10 |
| &nbsp;&nbsp;&nbsp;Gain on insurance proceeds - net, net of tax | (26.4) | (0.25) |  |  |
| &nbsp;&nbsp;Iceland equipment failure<sup>(1)</sup>, net of tax | 60.0 | 0.56 | 30.9 | 0.30 |
| &nbsp;&nbsp;Jamalco hurricane impact<sup>(2)</sup> | 5.9 | 0.06 | 5.7 | 0.06 |
| &nbsp;&nbsp;Mt. Holly expansion<sup>(3)</sup> | 7.5 | 0.07 | 8.0 | 0.08 |
| &nbsp;&nbsp;&nbsp;Mt. Holly emergency energy charges | 13.3 | 0.13 | 0.4 |  |
| **Adjusted net income attributable to Century** | $170.7 | $1.63 | $128.2 | $1.25 |

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<sup>(1)</sup> Represents impact of property damage and business interruption as a result of equipment failure at Grundartangi

<sup>(2)</sup> Represents Century's 55% incremental and fixed costs incurred while alumina production at Jamalco was restarted after Hurricane Melissa

<sup>(3)</sup> Represents incremental costs associated with the Mt. Holly expansion project

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| | | |
|:---|:---|:---|
| | **Three months ended** | **Three months ended** |
| | **March 31, 2026** | **December 31, 2025** |
| **Net income attributable to Century** | $337.5 | $1.8 |
| Add: Net loss attributable to noncontrolling interests | (10.5) | (4.9) |
| **Net income (loss)** | 327.0 | (3.1) |
| &nbsp;&nbsp;Interest expense - nonaffiliates | 9.9 | 10.6 |
| &nbsp;&nbsp;&nbsp;Interest expense - affiliates | 0.6 | 0.6 |
| &nbsp;&nbsp;&nbsp;Interest income | (3.1) | (2.7) |
| &nbsp;&nbsp;Net loss on forward and derivative contracts - nonaffiliates | 65.3 | 43.5 |
| &nbsp;&nbsp;&nbsp;Loss on early extinguishment of debt |  | 1.5 |
| &nbsp;&nbsp;Gain on insurance proceeds - net | (33.0) |  |
| &nbsp;&nbsp;Other expense - net | 5.5 | 3.2 |
| &nbsp;&nbsp;Income tax expense (benefit) | 1.8 | (12.3) |
| **Operating income** | 374.0 | 41.3 |
| &nbsp;&nbsp;Depreciation, depletion and amortization | 22.7 | 21.8 |
| &nbsp;&nbsp;&nbsp;Lower of cost or NRV inventory adjustment |  | 9.8 |
| &nbsp;&nbsp;Share-based compensation | 9.4 | 32.6 |
| &nbsp;&nbsp;&nbsp;Gain on the sale of Hawesville | (287.9) |  |
| &nbsp;&nbsp;&nbsp;Hawesville inventory write-down | 3.3 | 9.9 |
| &nbsp;&nbsp;Iceland equipment failure<sup>(1)</sup> | 75.0 | 38.6 |
| &nbsp;&nbsp;Jamalco hurricane impact<sup>(2)</sup> | 10.6 | 10.4 |
| &nbsp;&nbsp;Mt. Holly expansion<sup>(3)</sup> | 7.5 | 8.0 |
| &nbsp;&nbsp;&nbsp;Mt. Holly emergency energy charges | 13.3 | 0.4 |
| **Adjusted EBITDA** | 227.9 | 172.8 |
| Less: Adjusted EBITDA attributable to noncontrolling interests | (3.5) | 2.2 |
| **Adjusted EBITDA attributable to Century** | $231.4 | $170.6 |

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<sup>(1)</sup> Represents impact of property damage and business interruption as a result of equipment failure at Grundartangi

<sup>(2)</sup> Represents incremental and fixed costs incurred while alumina production at Jamalco was restarted after Hurricane Melissa

<sup>(3)</sup> Represents incremental costs associated with the Mt. Holly expansion project

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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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