FRONTIER LITHIUM INC. — Share Issue/Capital Change 2026

Apr 23, 2026

TingleMerrett LLP
Barristers & Solicitors

April 23, 2026

• Ontario Securities Commission
• British Columbia Securities Commission
• Alberta Securities Commission
• Financial and Consumer Affairs Authority of Saskatchewan
• Manitoba Securities Commission
• Financial and Consumer Services Commission, New Brunswick
• Nova Scotia Securities Commission
• Office of the Superintendent of Securities, Prince Edward Island
• Office of the Superintendent of Securities Service, Newfoundland and Labrador

Dear Sirs/Mesdames:

Frontier Lithium Inc.
Final Short Form Prospectus – Project Number 06425389

We refer to the final short form prospectus of Frontier Lithium Inc. (the "Corporation") dated April 23, 2026 (the "Prospectus") relating to the offering of units the Corporation in all of the provinces of Canada, except Quebec.

We hereby consent to the reference to our name on the third page of the Prospectus and under the heading "Legal Matters" and "Interest of Experts", of the Prospectus and consent to the reference to our name and opinion under the heading "Eligibility for Investment" in the Prospectus.

We confirm that we have read the Prospectus and that we have no reason to believe that there are any misrepresentations in the information contained in the Prospectus that is derived from our opinion referred to above or that is within our knowledge as a result of services performed in connection with such opinion.

Yours truly,

(signed) "Tingle Merrett LLP"