Nexgen Energy (NXE) investor relations material

Executive summary

• Achieved final federal approval and license for Rook I Project construction after a comprehensive regulatory process, enabling full-scale construction to begin in summer 2026.

• Rook I positioned as a globally significant uranium project, with construction readiness advanced and key contracts, vendors, and capital in place.

• Patterson Corridor East (PCE) exploration continues to deliver strong drilling results, expanding the high-grade subdomain and indicating further growth potential.

• Strategic focus on maximizing leverage to future uranium prices through flexible offtake agreements and staged contracting.

Financial highlights

• Maintained a strong cash position of over CAD 1 billion at the end of Q1 2026, supporting construction and exploration activities.

• Approximately CAD 748 million invested to date at Rook I, with strict cost control and milestone delivery.

• 2025 site infrastructure program (CAD 100 million) remains on budget and schedule.

Outlook and guidance

• Full-scale construction of Rook I to commence in summer 2026, with a four-year build and targeted production of 30 million pounds per annum.

• Additional offtake agreements expected through 2026, maintaining exposure to rising uranium prices.

• Financing package anticipated in late 2026 or early 2027, with no urgency due to strong treasury and multiple attractive options.

• No maiden resource for PCE expected in 2026; internal assessment ongoing, with potential for 2027 depending on drilling results.