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Atlantic Lithium Investment Overview

RESERVES AND RESOURCES Mineral Reserves* ** Tonnes (Mt) Grade (% Li₂O) Probable 25.6 1.22 Grade Mineral Resources* Tonnes (Mt) (% Li₂O) Measured 3.5 1.37 ATLA Indicated 24.5 1.25 UTH Inferred 7.4 1.16 Total 35.3 1.25 * Refer to important and cautionary statement on Page 2 and MRE release dated 1 February 2023 ** Based on DFS announcement; refer to important and cautionary statement on Page 2 and DFS release dated 29 June 2023 20-2 ATLANTIC LITHIUM Page 22

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