Production guidance for continuing operations increased by 50% to 1.4 - 1.5Moz AISC guidance for continuing operations decreased by $40/oz to $840 - 890/oz 2021 exploration budget increased by 40% to $70 - $90m with strong focus on newly acquired assets and greenfield properties Construction for Sabodala-Massawa Phase 1 expansion expected to be completed by year-end; DFS for Phase 2 expansion expected by year-end George Town, February 25, 2021 – Endeavour Mining (TSX:EDV) (OTCQX:EDVMF) is pleased to announce that it has increased its guidance for 2021 to include production from the recently integrated Sabodala-Massawa and Wahgnion mines, following completion of the Teranga Gold Corporation ("Teranga") acquisition. As shown in Table 1 below, consolidated 2021 production guidance for continuing operations has increased from 900,000 – 990,000 ounces to 1,350,000 – 1,475,000 ounces, while consolidated AISC guidance has decreased by $40/oz to $840 – $890/oz. The change reflects the inclusion of the Sabodala-Massawa and Wahgnion operations from February 11, 2021, which results in the addition of 450,000 – 485,000 ounces of production at AISC of below $900/oz for the 11-month period.