Investor Presentaiton

Mineral Resources estimates SOUTHHARZ POTASH Ohmgebirge Total Inferred Licence Area Ohmgebirge Total Indicated Ebeleben Mühlhausen-Nohra-Elende Mühlhausen-Keula Küllstedt Categorisation Indicated Inferred Inferred Inferred Inferred Inferred Resource (Mt) K₂O (%) K₂O (Mt) 258 13.5 35 258 13.5 35 577 12.1 69 1,698 9.7 165 1,130 11.1 125 1,538 10.7 165 80 13.1 9 5,023 10.6 533 Total South Harz Project JORC Mineral Resource estimate¹ 5,281 10.8 568 Ohmgebirge Mineralised Seam Sylvinite Sylvinite Sylvinite² total Categorisation Indicated Inferred Resource (Mt) K₂O (%) K₂O (Mt) 258 13.54 35 32 12.84 4 290 13.47 39 Carnallitite Inferred 48 9.81 LO 5 Carnallitite³ total 48 Total Ohmgebirge Mineral Resources 338 9.81 12.91 LO 5 44 1. 2. For full Mineral Resource estimate details, refer to South Harz ASX release dated 12 July 2022, Landmark Resource Upgrade at Ohmgebirge. South Harz confirms that it is not aware of any new information or data that materially affects the Mineral Resource estimate information included in that release. All material assumptions and technical parameters underpinning the Mineral Resource estimate in that release continue to apply and have not materially changed. Sylvinite is the mineral name for potassium chloride (KCI), the most common form of potash. 3. Carnallitite is made up of potassium chloride, magnesium and water and can be extracted using solution mining AUGUST 2023 INVESTOR PRESENTATION 21

View entire presentation