Transaction in Own Shares

Griffin Mining Limited

18 July 2024

8^th Floor, 54 Jermyn Street, London, SW1Y 6LX. United Kingdom

Telephone: + 44 (0)20 7629 7772 Facsimile: + 44 (0)20 7629 7773

Transaction in own shares

18^th July 2024

Griffin Mining Ltd ("the Company") announces that on 17^th July 2024 Panmure Liberum Limited ("Panmure Liberum") purchased on behalf of the Company 57,098 of the Company's own ordinary shares ("Ordinary Shares") at a price of 153 pence per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being.

The ordinary shares have been purchased under an irrevocable commitment with the Company's corporate broker, Panmure Liberum, to manage the Share Buyback Programme, announced on 26^th February 2024, on the Company's behalf.

Following completion of the purchase of these Ordinary Shares there are 184,530,477 Ordinary Shares in issue, of which 810,550 Ordinary Shares will be held in treasury.

Consequently, shareholders should use 183,719,927 Ordinary Shares as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in the Company.

Further information

Griffin Mining Limited

Mladen Ninkov - Chairman Telephone: +44(0)20 7629 7772

Roger Goodwin - Finance Director

Panmure Liberum Limited - Nominated Adviser & Joint Broker Telephone: +44 (0)20 7886 2500

James Sinclair-Ford

Kieron Hodgson

Dougie McLeod

Berenberg - Joint Broker Telephone: +44(0)20 3207 7800

Matthew Armitt

Jennifer Lee

This announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) No. 596/2014

Griffin Mining Limited's shares are quoted on the Alternative Investment Market (AIM) of the London Stock Exchange (symbol GFM).

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

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