NexGen Announces Appointment of Susannah Pierce to its Board of Directors

VANCOUVER, BC, June 18, 2024 /PRNewswire/ – NexGen Energy Ltd. (“NexGen” or the “Company”) (TSX: NXE) (NYSE: NXE) (ASX: NXG) is pleased to announce the appointment of Susanna Pierce to the Board of Directors of the Company following the 2024 Annual General Meeting of the Company which took place Monday June 17^th2024.

Susanna Pierce

Ms. Pierce has over 20 years of experience bringing together businesses, governments, communities, Indigenous groups and other non-governmental stakeholders to support the development of large investment projects to maximize investment returns. In her current role as President and National President of Shell Canada, she is responsible for driving the integration and coordination of commercial activities and corporate policies across Shell’s operations in Canada. Canada. She previously served as Director of Corporate Affairs at LNG Canada, a joint venture of Shell, Petronas, Mitsubishi, PetroChina and Kogas, where she was responsible for federal and provincial regulatory approvals of the project, Indigenous relations and negotiations, government relations, media relations, community consultation and communication.

Ms. Pierce is currently co-chair of the Business Council of Canada’s Working Group on Climate Change and Energy Transition, part of the Greater Vancouver Chamber of Commerce and Catalyst Canada. She is the past president of the Business Council of BC, co-chair of the Business Council of Alberta Defining the Decade and co-chairing the Canada Chamber of Commerce Western Executive Council. She previously served on the board of directors of Gemini Corp. and holds an ICD certification.

Christopher McFaddenChairman of the Board of Directors, commented: “On behalf of the entire NexGen team, I would like to warmly welcome Ms. Pierce to the Company’s Board of Directors. Ms. Pierce brings her skills and experience in the energy sector and internationally to the board. government relationships that strongly align with NexGen’s stage of development and long-term goals. His proven ability to optimize outcomes for all stakeholders will complement the Company’s dedicated Board of Directors and support NexGen’s experienced management team as we advance the Rook I project to the final stage. stages of federal regulatory approvals and start of construction. Once operational, NexGen will be a significant global leader in the energy sector considering that the company will be capable of producing more than 25% of the world’s uranium production used to fuel civilian nuclear power plants. worldwide.”

About NexGen

NexGen Energy is a Canadian company focused on providing clean energy fuels for the future. The Company’s flagship project, Rook I, is being optimally developed to become the world’s largest low-cost producing uranium mine, incorporating the most elite standards in environmental and social governance. The Rook I project is supported by a NI 43-101 compliant feasibility study that outlines elite environmental performance and industry-leading economic features. NexGen is led by a team of experienced uranium and mining industry professionals with expertise across the entire mining life cycle, including exploration, financing, engineering and project construction, operation and closure. NexGen leverages its proven experience to deliver a project that leads the entire mining industry socially, technically and environmentally. The project and prospective portfolio in the north Saskatchewan will bring long-term economic, environmental and social benefits to future generations. Saskatchewan, Canadaand the world.

NexGen is listed on the Toronto Stock Exchange, the New York Stock Exchange under the symbol “NXE” and the Australian Securities Exchange under the symbol “NXG”, allowing global investors to participate in NexGen’s mission to solve three major global challenges. in terms of decarbonization, energy security and access to electricity. The Company has its head office in Vancouver, British Columbiawith its main operations office in Saskatoon, Saskatchewan.

Forward-looking information

The information contained herein contains “forward-looking statements” within the meaning of applicable United States securities laws and regulations and “forward-looking information” within the meaning of applicable Canadian securities laws. “Forward-looking information” includes, but is not limited to, statements regarding estimates of mineral reserves and mineral resources, the Arrow 2021 deposit, the Rook I project and estimates of uranium production, grade and long-term average uranium prices, predicted effects. completed drilling results on the Rook I Project, planned work programs, completion of additional site investigations and engineering works to support the project’s core engineering and expected results. Generally, but not always, forward-looking information and statements can be identified by the use of words such as “plans”, “expects”, “is expected”, “budget”, “scheduled”, “estimates” , ” forecasts “. , “intends”, “anticipates” or “believes” or the negative connotation thereof or variations of these words and phrases or state that certain actions, events or results “may”, “could”, ” would”, “could” or “will be taken”, “occur” or “be achieved” or its negative connotation. Statements relating to “mineral resources” are considered forward-looking information because they involve the implied assessment that, based on certain estimates and assumptions, the mineral resources described can be produced profitably in the future.

Forward-looking information and statements are based on then-current expectations, beliefs, assumptions, estimates and forecasts regarding NexGen’s business, the industry and the markets in which it operates. Forward-looking information and statements are based on numerous assumptions, including, among other things, that estimates of mineral reserves and resources and the key assumptions and parameters on which such estimates are based are as set forth in this press release. press and technical report of the property, the results of the planned exploration activities are as anticipated, the price and supply of uranium on the market, the cost of the planned exploration activities, the fact that the financing will be available if and when necessary and on reasonable terms, that third party contractors, equipment, supplies and governmental and other approvals required to conduct NexGen’s planned exploration activities will be available on reasonable terms and in a timely manner and general business and economic conditions will not change materially adversely. Although the assumptions made by the Company in providing forward-looking information or making forward-looking statements were considered reasonable by management at the time, there can be no assurance that such assumptions will prove to be accurate in the future.

Forward-looking information and statements also involve known and unknown risks and uncertainties and other factors, which may cause the actual results, performance and achievements of NexGen to differ materially from the projections of results, performance and achievements of NexGen expressed or implied. -meant by these forecasts. forward-looking information or statements, including, among other things, the existence of negative operating cash flows and reliance on third party financing, uncertainty as to the availability of additional financing, the risk that results pending analyzes do not confirm previously announced preliminary results, conclusions of economic evaluations, the risk that actual results of exploration activities may differ from those anticipated, the cost of labor, equipment or materials increases more than expected, that the future price of uranium decreases or does not reach an economic level, the attractiveness of alternative energy sources to energy produced from uranium, that the Canadian dollar will strengthen against the US dollar, mineral resources and reserves do not match estimates, actual costs or actual results of reclamation activities are higher than expected, changes in mineral parameters project and plans continue to be refined and may result in increased costs, unexpected variations in mineral resources and reserves, grades or recovery rates or other risks commonly associated with mining, unanticipated delays in obtaining government, regulatory or First Nations approvals for First Nations risks. title and consultation, dependence on principal officers and other personnel, deficiencies in the Company’s title to its properties, uninsurable risks, inability to manage conflicts of interest, inability to obtain or maintain required permits and licenses, risks relating to changes in laws, regulations, policy and public perception, as well as those factors or other risks described in more detail in NexGen’s annual information form dated March 6, 2024 filed with the securities commissions of all provinces of Canada except Quebec and in NexGen’s 40-F filed with the United States Securities and Exchange Commission, which are available on SEDAR at www.sedar.com and Edgar at www.sec.gov.

Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in or implied by the forward-looking information or statements, there may be other factors that means that the results will not be as anticipated, estimated or expected. Readers are cautioned not to place undue reliance on forward-looking information or statements due to the inherent uncertainty thereof.

There can be no assurance that forward-looking information and statements will prove to be accurate, as actual results and future events could differ materially from those anticipated, estimated or intended. Therefore, readers should not place undue reliance on any forward-looking statements or information. The Company undertakes no obligation to update or reissue any forward-looking information as a result of new information or events, except as required by applicable securities laws..

SOURCE NexGen Energy Ltd.