Share Buy Back Programme

As outlined in Griffin Mining Limited's ("Griffin" or the "Company') announcements on the 26th February 2024, 7th August 2024 and 30th October 2024, the Company is reinstituting its share buy-back programme. The repurchased shares will be acquired on market and on an ad hoc basis as determined by the Company (the "Buy Back Programme").

The Company has further resolved to purchase up to 10 million outstanding ordinary shares and/or up to $10 million of such shares for cancellation until 13th December 2025, after which the directors of the Company will consider a further Buy Back Programme and/or other means of returning excess funds to shareholders. This arrangement is in accordance with the Company's general authority to repurchase shares.

In addition to the Share Buyback Programme, the directors continue to reserve the right (subject to compliance with applicable law) to:

Shares will not be purchased during closed periods or at any time where market sensitive information has yet to be disclosed to the markets and the buy-back programme may be cancelled or suspended at any time.

Pursuant to the previous buyback which ceased on 25 April 2025 the Company purchased 1,266,996 of its own Ordinary Shares in aggregate, which have now been cancelled. Consequently, there are 184,263,481 Ordinary Shares in issue, with none held in treasury. Shareholders should use 184,263,481 Ordinary Shares as the denominator for the calculations by which they will determine if they are required to notify their interest in, or change their interest in, the Company, under the Financial Conduct Authorities Disclosure and Transparency Rules.

The Company's news releases are available on the Company's web site: www.griffinmining.com