POWER OF ATTORNEY

FOR EXECUTING FORM 3, FORM 4, FORM 5,

FORM 144 AND SCHEDULE 13D AND SCHEDULE 13G

Each of the undersigned hereby constitutes and appoints Norma Garcia and Kristine Price, or either of them acting without the other, with full power of substitution, as each of the undersigned’s true and lawful attorney-in-fact to:

Execute for and on behalf of each of the undersigned any (a) Form 3, Form 4 and Form 5 (including amendments thereto) in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), (b) Form 144 (including any amendments thereto) and (c) Schedule 13D and Schedule 13G (including amendments thereto) in accordance with Sections 13(d) and 13(g) of the Exchange Act, but only to the extent each form or schedule relates to the undersigned’s beneficial ownership of securities of International Battery Metals Ltd. (the “Company”) or any of its subsidiaries;

Do and perform any and all acts for and on behalf of each of the undersigned that may be necessary or desirable to complete and execute any Form 3, Form 4, Form 5, Form 144, Schedule 13D or Schedule 13G (including amendments thereto) and timely file the forms or schedules with the Securities and Exchange Commission and any stock exchange or quotation system, self-regulatory association or any other authority, and provide a copy as required by law or advisable to such persons as the attorney-in-fact deems appropriate; and

Take any other action in connection with the foregoing that, in the opinion of the attorney-in-fact, may be of benefit to, in the best interest of or legally required of the undersigned, it being understood that the documents executed by the attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in the form and shall contain the terms and conditions as the attorney-in-fact may approve in the attorney-in-fact’s discretion.

Each of the undersigned hereby grants to the attorney-in-fact full power and authority to do and perform all and every act requisite, necessary or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that the attorney-in-fact shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers granted herein. Each of the undersigned acknowledges that the attorneys-in-fact, in serving in such capacity at the request of each of the undersigned, are not assuming (nor is the Company assuming) any of the undersigned’s responsibilities to comply with Section 13D, Section 13G or Section 16 of the Exchange Act. Each of the undersigned agrees that the attorney-in-fact may rely entirely on information furnished orally or in writing by or at the direction of each of the undersigned to the attorney-in-fact.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file a Form 3, Form 4, Form 5, Form 144, Schedule 13D and Schedule 13G (including amendments thereto) with respect to the undersigned’s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the attorney-in-fact. This Power of Attorney does not revoke any other power of attorney that the undersigned has previously granted.

IN WITNESS WHEREOF, the undersigned have caused this Power of Attorney to be executed as of April 29, 2026.

EV METALS 9 LLC

By: EV Metals GP LLC

/s/ Jacob A. Warnock

Name: Jacob A. Warnock

Title: Manager

[Signature Page to Power of Attorney]

EV Metals 9 LLC 3