Company: FEAV
Filing Date: 2025-03-18
Form Type: S-3
Source: 0001193125-25-056676
Chunk: 32

Company: 5E Advanced Materials, Inc.
Filing Date: 2025-03-18
Form: S-3
Chunk 32
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 bona fide offering thereof.                                                                                                                                                           |

| (h) | Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors,                                                                                                                                                
 officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act    
 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the     
 successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been       
 settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue. |

II-4

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Hesperia, State of California on March 18, 2025.

| 5E ADVANCED MATERIALS, INC. |     |                         |
| By:                         |     | /s/ Paul Weibel         |
|                             |     | Paul Weibel             |
|                             |     | Chief Executive Officer |

POWER OF ATTORNEY Each of the undersigned officers and directors of the registrant hereby severally constitutes and appoints each of Paul Weibel and Joshua Malm, and each of them singly (with full power to each of them to act alone), as his true and lawful attorneys-in-factand agents, with full power of substitution and resubstitution in each of them, for him and in his name, place and stead, and in any and all capacities, to file and sign any and all amendments, including post-effective amendments, to this registration statement and any other registration statement for the same offering that is to be effective under Rule 462(b) of the Securities Act of 1933, and to file the same, with all exhibits thereto and