U.S. Securities and Exchange Commission (“SEC”)

Current Report on Form 8-K of 5E Advanced Materials, Inc. (the “Company”) dated August 7, 2025 (the “Form 8-K”)

The filing and/or incorporation by reference by the Company and use of the Technical Report Summary titled “Preliminary Feasibility Study on 5E Advanced Materials Fort Cady Project” with a, report date of August 7, 2025, and report effective date of August 4, 2025 (the “Technical Report Summary”) that was prepared in accordance with Subpart 1300 of Regulation S-K promulgated by the SEC, filed (or incorporated by reference) as Exhibit 96.1 to the Company’s Current Report on Form 8-K, dated August 7, 2025;

The incorporation by reference of the Technical Report Summary in the Company’s Registration Statements on Form S-3 (File Nos. 333-287557, 333-285880, 333-282325, 333-276753 and 333-276162) and Form S-8 (File Nos. 333-285886 and 333-264136), and any amendments or supplements thereto (collectively, the “Registration Statements”);

The use of and references to our name, including our status as an expert or “qualified person” (as defined in Subpart 1300 of Regulation S-K promulgated by the SEC), in connection with the Form 8-K and the Registration Statements, and any such Technical Report Summary; and

The use of any quotation from, or summarization of, the particular section or sections of the Technical Report Summary in the Form 8-K and the Registration Statements, to the extent it was prepared by us, that we supervised its preparation of and/or that was reviewed and approved by us, that is included or incorporated by reference to the Form 8-K and the Registration Statements.

/s/ Alan E. White

Principal Engineer and Chief Financial Officer,

Miocene, Inc.