Q3 and Q4 2023 Corporate Highlights

Efemçukuru High-grade underground operation located in Izmir Province in western Türkiye OVERVIEW Location İzmir Province, Türkiye RESERVES AND RESOURCES (2) Contained Tonnes Grade Ownership 100% Black Sea (x1000) (g/t Au) Ounces (x1000 Au) Mine type Underground P&P Reserves 3,372 5.08 550 Ankara O Metals mined Gold M&I Resources 5,580 6.69 1,200 TÜRKIYE Processing method Flotation circuit to produce gold concentrate GREECE Inferred Resources 1,323 4.13 176 Efemçukuru Deposit type Epithermal gold Mediterranean Sea Life of mine 6 years based on Reserves 2022 Results 87,685 ozs produced at $1,091/oz AISC(1) and C1 Cost(1) of $701/oz sold Production: 86,088 ozs 2023 FY Results (3) Q3 YTD: Cash Operating Cost (C1)(1): $791/oz sold eldorado gold (1) (2) (3) Europe • Maintain low-cost production Efemçukuru focused on continuous improvement to sustain low-cost production Efemçukuru met annual production guidance for 9th consecutive year, since 2014 These are non-IFRS financial measures or ratios. See Slide 2 'Non-IFRS Measures' for more information. Please refer to the Appendix for more information with respect to the mineral resources and mineral reserves. Preliminary Gold Production as announced on January 15, 2024. Please refer to the news release for more information. 21

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