August 2018

Griffin Mining Ltd (“the Company”) announces that having been notified of the exercise of options (“the Options”) by, and having received the exercise monies from, former management over 166,667 new ordinary shares in the Company granted in February 2014 at an exercise price of 40p per share the directors have resolved to issue 166,667 new ordinary shares in the Company.

Following the exercise of the Options there will be 172,748,728 Ordinary Shares in the Company in issue. There are 540,000 shares held in treasury.

Application will be made to the London Stock Exchange for the 166,667 new ordinary shares to be admitted to trading on AIM. These new ordinary shares will rank pari passu in all respects with the existing ordinary shares. It is expected that admission will become effective on 7^th September 2018.

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Griffin Mining Ltd (“the Company”) announces that on 30^th August 2018 it purchased 25,000 of the Company’s own ordinary shares (“Ordinary Shares”) at a price of 107.7p per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being. Following completion of the purchase of these Ordinary Shares there will be 540,000 Ordinary Shares held in treasury.

The purchase represented 0.01% of the Company’s issued share capital and was pursuant to the bye-laws of the Company and a resolution of the directors.

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Change in substantial interest.

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Griffin Mining Ltd (“the Company”) announces that on 22^nd August 2018 it purchased 50,000 of the Company’s own ordinary shares (“Ordinary Shares”) at a price of 107.48p per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being. Following completion of the purchase of these Ordinary Shares there will be 515,000 Ordinary Shares held in treasury.

The purchase represented 0.02% of the Company’s issued share capital and was pursuant to the bye-laws of the Company and a resolution of the directors.

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Griffin Mining Ltd (“the Company”) announces that on 20^th August 2018 it purchased 50,000 of the Company’s own ordinary shares (“Ordinary Shares”) at a price of 113.00p per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being. Following completion of the purchase of these Ordinary Shares there will be 465,000 Ordinary Shares held in treasury.

The purchase represented 0.02% of the Company’s issued share capital and was pursuant to the bye-laws of the Company and a resolution of the directors.

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Griffin Mining Ltd (“the Company”) announces that on 16^th August 2018 it purchased 50,000 of the Company’s own ordinary shares (“Ordinary Shares”) at a price of 109.00p per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being. Following completion of the purchase of these Ordinary Shares there will be 415,000 Ordinary Shares held in treasury.

The purchase represented 0.02% of the Company’s issued share capital and was pursuant to the bye-laws of the Company and a resolution of the directors.

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Griffin Mining Ltd (“the Company”) announces that on 15^th August 2018 it purchased 50,000 of the Company’s own ordinary shares (“Ordinary Shares”) at a price of 114.20p per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being. Following completion of the purchase of these Ordinary Shares there will be 365,000 Ordinary Shares held in treasury.

The purchase represented 0.01% of the Company’s issued share capital and was pursuant to the bye-laws of the Company and a resolution of the directors.

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Griffin Mining Ltd (“the Company”) announces that on 10^th August 2018 it purchased 25,000 of the Company’s own ordinary shares (“Ordinary Shares”) at a price of 125.7p per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being. Following completion of the purchase of these Ordinary Shares there will be 290,000 Ordinary Shares held in treasury.

The purchase represented 0.01% of the Company’s issued share capital and was pursuant to the bye-laws of the Company and a resolution of the directors.

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Griffin Mining Ltd (“the Company”) announces that on 9^th August 2018 it purchased 25,000 of the Company’s own ordinary shares (“Ordinary Shares”) at a price of 124.98p per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being. Following completion of the purchase of these Ordinary Shares there will be 265,000 Ordinary Shares held in treasury.

The purchase represented 0.01% of the Company’s issued share capital and was pursuant to the bye-laws of the Company and a resolution of the directors.

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Griffin Mining Ltd (“the Company”) announces that on 8^th August 2018 it purchased 90,000 of the Company’s own ordinary shares (“Ordinary Shares”) at a price of 124.7p per Ordinary Share. The Ordinary Shares have been purchased to be held in treasury for the time being. Following completion of the purchase of these Ordinary Shares there will be 240,000 Ordinary Shares held in treasury.

The purchase represented 0.05% of the Company’s issued share capital and was pursuant to the bye-laws of the Company and a resolution of the directors.

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