Mr. Leigh Curyer reports

NEXGEN ENERGY TO HOST 2024 YEAR END CONFERENCE CALL

NexGen Energy Ltd. will host its 2024 year-end and forth quarter conference call on Wednesday, March 5, 2025, at 8:30 a.m. Eastern Standard Time.

During the call, NexGen's president and chief executive officer, Leigh Curyer, alongside chief commercial officer Travis McPherson and chief financial officer Benjamin Salter, will provide a comprehensive update on the company's 100-per-cent-owned Rook I project. This will include the latest progress on the federal approvals, project development and readiness, recent contract negotiations, and developments on financing activities, along with an analysis of current market fundamentals and industry dynamics.

Call-in details

Date:  Wednesday, March 5, 2025

Time:  8:30 a.m. Eastern Standard Time

North America toll-free number:  1-888-699-1199

Australia local number:  02-8017-1385

Prior to the call, the company will file its year-end and fourth-quarter financial statements and management discussion and analysis on Tuesday, March 4, 2025, premarket. These fillings will be available for review on the NexGen website under reports and filings and on the company's SEDAR+ profile. In addition, a replay will be available on the NexGen website under events and presentations.

About NexGen Energy Ltd.

NexGen Energy is a Canadian company focused on delivering clean energy fuel for the future. The company's flagship Rook I project is being optimally developed into the largest low-cost producing uranium mine globally, incorporating the most elite standards in environmental and social governance. The Rook I project is supported by a National Instrument 43-101 compliant feasibility study, which outlines the elite environmental performance and industry-leading economics. NexGen is led by a team of experienced uranium and mining industry professionals with expertise across the entire mining life cycle, including exploration, financing, project engineering and construction, operations, and closure. NexGen is leveraging its proven experience to deliver a project that leads the entire mining industry socially, technically and environmentally. The project and the company's prospective portfolio in Northern Saskatchewan will provide generational long-term economic, environmental and social benefits for Saskatchewan, Canada and the world.

NexGen is listed on the Toronto Stock Exchange and the New York Stock Exchange under the ticker symbol NXE and on the Australian Securities Exchange under the ticker symbol NXG, providing access to global investors to participate in NexGen's mission of solving three major global challenges in decarbonization, energy security and access to power. The company is headquartered in Vancouver, B.C., with its primary operations office in Saskatoon, Sask.

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