5E Advanced Materials, Inc. — Share Issue/Capital Change 2025

Feb 25, 2025

ASX Release 26 February 2025

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COMPLETION OF REVERSE STOCK SPLIT

5E Advanced Materials, Inc. (ASX: 5EA) (the Company ) advises that the reverse stock split of the Company’s common stock and CHESS Depositary Interests ( CDIs ) at a ratio of 1-for-23 (the Reverse Stock Split ) has been completed.

Following implementation of the Reverse Stock Split, the Company’s issued capital is as follows:

ASX Code	Description	Number
5EA	CHESS Depositary Interests 10:1	14,648,670
5EAAO	Common Stock	1,536,615
5EAAP	10:1 CDI Equivalent to 5EAAO	15,366,150
5EAAR	Convertible Notes	90,112
5EAAT	Performance Share Units	22,899
5EAAS	Restricted Share Units	18,829
5EAAW	Option Expiring 24-APR-2033 EX USD 177.68	17,391
5EAAL	Option Expiring 01-JUN-2025 EX USD 336.26	57,965
5EAAN	Option Expiring 01-OCT-2025 EX USD 378.35	10,144
5EAAK	Option Expiring 07-APR-2025 EX USD 420.21	4,342
5EAAY	Option Expiring 01-AUG-2024 EX USD 23.69	10,868
5EAAX	Option Expiring 01-AUG-2027 EX USD 29.21	24,999

New holding statements have been dispatched to security holders on a post-Reverse Stock Split basis. Trading in postReverse Stock Split CDIs will commence on ASX on a normal settlement basis on 27 February 2025.

This announcement has been authorized for release by the Company’s Chief Executive Officer, Paul Weibel.

About 5E Advanced Materials, Inc.

5E Advanced Materials, Inc. (Nasdaq: FEAM) (ASX: 5EA) is focused on becoming a vertically integrated global leader and supplier of boron specialty and advanced materials, complemented by lithium co-product production. The Company’s mission is to become a supplier of these critical materials to industries addressing global decarbonization, food and domestic security. Boron and lithium products will target applications in the fields of electric transportation, clean energy infrastructure, such as solar and wind power, fertilizers, and domestic security. The business strategy and objectives are to develop capabilities ranging from upstream extraction and product sales of boric acid, lithium carbonate and potentially other co-products, to downstream boron advanced material processing and development. The business is based on our large domestic boron and lithium resource, which is located in Southern California and designated as Critical Infrastructure by the Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency.

5E Advanced Materials, Inc. ARBN 655 137 170 9329 Mariposa Road, Suite 210, Hesperia, California 92344 USA

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For further information contact:

Joseph Caminiti or Nathan Skown Alpha IR Group FEAM@alpha-ir.com PH: +1 (312) 445-2870

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