Generation Mining Limited — Share Issue/Capital Change 2026

Jan 10, 2026

Cassels

January 9, 2026

FILED BY SEDAR+

• 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 Service, Newfoundland and Labrador
• Financial and Consumer Services Division, Prince Edward Island
• Office of the Superintendent of Securities Northwest Territories
• Office of the Yukon Superintendent of Securities
• Nunavut Securities Office

Dear Sirs/Mesdames:

RE: Generation Mining Limited (the “Corporation”)
Prospectus Supplement dated January 9, 2026 to the Short Form Base Shelf Prospectus dated May 31, 2024 (the “Supplement”)

We refer to the Supplement of the Corporation relating to an offering of units.

We, as counsel to the Corporation, hereby consent to the use of our firm opinion under the heading “Eligibility for Investment” and to the reference to our firm name on the face page of the Supplement and under the heading “Legal Matters”.

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

Yours truly,

“CASSELS BROCK & BLACKWELL LLP”

t: 416 869 5300
f: 416 360 8877
cassels.com
Cassels Brock & Blackwell LLP
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Toronto, ON M5H 0B4 Canada