Company: FEAV
Filing Date: 2025-02-18
Form Type: DEFA14A
Source: 0000950170-25-022324
Chunk: 0

Company: 5E Advanced Materials, Inc.
Filing Date: 2025-02-18
Form: DEFA14A
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )</div>

Filed by the Registrantx

Filed by a party other than the Registrant¨

Check the appropriate box:

| ¨ | Preliminary Proxy Statement                                                     |
| ¨ | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ¨ | Definitive Proxy Statement                                                      |
| x | Definitive Additional Materials                                                 |
| ¨ | Soliciting Material under §240.14a-12                                           |

<div align='center'>5E Advanced Materials, Inc.

(Name of Registrant as Specified in its Charter)

Not Applicable

(Name of Person(s) Filing Proxy Statement, if Other Than The Registrant)</div>

Payment of Filing Fee (Check the appropriate box):

| x | No fee required.                                                                                     |
| ¨ | Fee paid previously with preliminary materials.                                                      |
| ¨ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11. |

<div align='center'>5E ADVANCED MATERIALS ANNOUNCES THE EXPECTED APPOINTMENT OF CURTIS HÉBERT TO THE COMPANY’S BOARD OF DIRECTORS

Mr. Hébert will bring extensive expertise in regulatory affairs, law, government relations, and strategic business management to the Company’s Board of Directors</div>

HESPERIA, CA., February 18, 2025(GLOBE NEWSWIRE) – 5E Advanced Materials, Inc. (Nasdaq: FEAM) (ASX: 5EA) (“5E” or the “Company”), a boron and lithium company with U.S. government Critical Infrastructure designation for its 5E Boron Americas Complex, is pleased to announce the expected appointment of Curtis (Curt) Hébert, Jr. to its board of directors, subject to the successful completion of the Transaction and out-of-court restructuring discussed below..

Mr. Hébert will bring over three decades of valuable experience to 5E’s board as a recognized leader in the power and energy industry, with extensive experience as a state and federal regulator, energy attorney, and executive