Mr. Leigh Curyer reports

NEXGEN ANNOUNCES VOTING RESULTS FROM ITS 2023 ANNUAL MEETING OF SHAREHOLDERS

NexGen Energy Ltd. has released the voting results from its annual general and special meeting of shareholders, held on June 15, 2023.

Shareholders voted in favour of all matters of business before the meeting. Each of those matters is set out in detail in the management information circular published in connection with the meeting, which is available on the company's website.

A total 329,424,392 common shares, representing approximately 67.60 per cent of the company's outstanding common shares, were voted in person and by proxy at the meeting. Shareholders voted in favour of: (a) reappointing KPMG LLP as the auditor of the company (99.68 per cent in favour); and (b) setting the number of directors at 10 (99.28 per cent in favour).

Shareholders also voted on the following matters at the meeting.

Election of directors

The nominees listed in the management information circular were elected as directors of the company until the next annual meeting of shareholders or until their successors are elected or appointed, with the voting results provided in the attached table.

Continuation of the company's shareholder rights plan

The continuation of the company's amended shareholder rights plan was approved, with the voting results provided in the attached table.

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 that 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 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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