1^st September 2021

SIMEC ATLANTIS ENERGY LIMITED
("Atlantis", the "Company" or the "Group")

Total Voting Rights

The Company notifies that, for the purposes of the Financial Conduct Authority's Disclosure and Transparency Rules, the total number of ordinary shares in the capital of the Company in issue as at 31^st August 2021 is 547,273,874 with each share carrying the right to one vote.

No ordinary shares are held in treasury. Accordingly, this figure of 547,273,874 ordinary shares may be used by shareholders in the Company as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the share capital of the Company under the Disclosure Guidance and Transparency Rules of the Financial Conduct Authority.

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Notes to Editors

 SIMEC Atlantis Energy

SAE is a global developer, owner and operator of sustainable energy projects with a diverse portfolio in various stages of development. This includes a 77 per cent. stake in the world's largest tidal stream power project, MeyGen, 100 per cent. of the 220MW Uskmouth Power Station conversion project and 100 per cent. of Green Highland Renewables, a leading developer of mini-hydro projects.

https://www.simecatlantis.com/

 More on the MeyGen Project: https://simecatlantis.com/projects/meygen/

More on the Uskmouth Project:   https://simecatlantis.com/project-development-operation/simec-uskmouth-power/