Endeavour Mining Investor Presentation Deck

2 KEY PROJECTS PROJECT DEVELOPMENT Sabodala-Massawa expansion underway; progressing DFS on greenfield projects DFS INSIGHTS: Construction commenced in Q2-2022, first gold from the BIOX® plant expected in early 2024 ■ ■ Incremental annual production of 194koz over the first five years at a low AISC of $531/oz ■ BROWNFIELD PROJECT: SABODALA-MASSAWA EXPANSION ■ ■ BIOX® project initial capex: $290m After-tax NPV5% & IRR at $1,500/oz: $861m, 72% Lifts Sabodala-Massawa complex to top tier status GREENFIELD PROJECT: LAFIGUÉ ON FETEKRO PROPERTY PFS INSIGHTS: ■ Mine life: 10 years ■ LOM AISC: $838/oz PANGOR ▪ Average annual production: 209koz Initial Capex: $338m ▪ After-tax NPV5% & IRR at $1,500/oz: $497m, 33% DFS due Mid-2022 PFS INSIGHTS: ■ Mine life: 11 years ■ LOM AISC: $901/oz ■ GREENFIELD PROJECT: KALANA ENDEAVOUR MINING Average annual production: 150koz Initial Capex: $297m After-tax NPV 5% & IRR at $1,500/oz: $331m, 49% ▪ Acquisition price: circa $120m DFS due H2-2022 13

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