Corporate Presentation – September 2024

Presentation Highlights:

• Doré Copper Mining is advancing its goal to become one of the leading copper producers in Quebec. Key milestones include the completion of a preliminary economic assessment (PEA) in 2024 and progressing towards a feasibility study in 2025. The company aims to achieve an initial production rate of 1,350 tons per day from its high-grade copper-gold assets, including Corner Bay, Devlin, and Joe Mann.
• The financial outlook for Doré Copper is robust, with an after-tax internal rate of return (IRR) for the PEA of 22.1% under base case conditions and 29.4% in a spot price scenario. Initial capital costs are estimated at CAD 180.6 million, with additional CAD 402.4 million required for sustaining capital over the mine’s life. Operating costs are projected at CAD 186 per tons, underscoring the project’s economic strength.
• Doré Copper has established a significant resource base of 9.15 million tons with average grades of 2.61% copper, 0.59 g/t gold, and 2.98% copper equivalent (CuEq). With its Copper Rand mill ready, the company targets first production in 2027. Environmental permitting and community engagement are also progressing to support a sustainable development approach.