Endeavour Mining Investor Presentation Deck

* Senegal SABODALA-MASSAWA MINE Exploration Video DISCOVERY TARGET (2021-2025) M&I RESOURCES as at Dec 31, 2021 110Mt at 1.94g/t au containing 6.88Moz Grade g/t NEAR-TERM FOCUS Discovery of additional high-grade refractory and non-refractory ore resources. Explore high-grade underground opportunities. Launch airborne magnetic survey to identify targets with no surface expression. TARGET SCREENING 5 MINING 4 2.3 -2.7Moz Indicated resources 2 1 0.4 (blue indicates near-term focus) Massawa South Bambaraya. Kawsara Goumbati ENDEAVOUR $26/oz Discovery cost Soba/Tinkoto Samina Makana Sofia North Extension Kaba Tina Niafikiri Tiwana and Thianga Massawa CZ 0.6 0.8 Probability of Occurrence applied 1.0 IN Maka T 80% BRANSAN LOT-B SABODALA LOT-A a-Sofia Shear Zone PLANT Sofia North- Sofia Main, Thianga 40 km from plant 0 20 km from plant . Shear Zone Transcu T SENEGAL FF KANOUMBA. BRANSAN LOT-A 16:00 Bambaraya SABODALA LOT-B MASSAWA Tina 20 km SOUNKOUKOU MALI Samina Kossanto ▬▬▬▬22 Faleme River -Massawa North (NZ) Massawa Central (CZ) Delya ++ ++ + + + + ++++++ ++ ++ ++++ 2003 ++++++ Dakar +++ ++++++ + + + + + + + + + GAMBIA +++++ +++ *Bembou+ + + ++ +++++ 40 +++++++++++++ +++++++++++++++ +++++++++++++++ ++++++++++++++++ + + + + + + + + + + + + + + + + ++++++++++++++++ + + + + + + + + + + + + + + + + ++++++++++++++++ + + GUINEA-BISSAU SENEGAL MAURITANIA MAP VIEW BRANSAN LOT-C GUINEA Geology IBID Infrastructure Mining Concessions Exploration Permits Sabodala Plant ++ ++ ● Prospect Mineral Resources MALI First Order Structure Block Model Outline Mafic Volcanics Volcanics Granite Gneiss Granite Metasediments +++++ 53

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