MARCH 2026 GEARING UP TO BUILD CANADA'S NEXT MAJOR GOLD MINE INVESTOR PRESENTATION ODV NYSE TSXV | osiskodev.com Osisko Development used in this Presentation, certain non-IFRS measures including, "all-in sustaining cost" or "AISC" and "total cash cost" and "free cash flow". All-in sustaining cost per gold ounce is defined as production costs less silver sales plus general and administrative, exploration, other expenses and sustaining capital expenditures divided by gold ounces. Cash costs are a non-IFRS mea ...