NexGen Energy awards EPCM contract for the FEED stage of the Rook I Project to Hatch

December 7, 2021

Saskatoon, Canada—NexGen Energy Ltd. (NexGen) has awarded the engineering, procurement, and construction management (EPCM) contract for the front-end engineering design (FEED) stage of the Rook I Project to Hatch, with work well underway. Integrating fully into the owner's team, Hatch is responsible for providing NexGen with engineering, procurement, and execution planning services, along with supporting overall project management.

Leigh Curyer, Chief Executive Officer, NexGen, commented, “Advancing into the FEED stage of development is another exciting milestone for the Company, and we're pleased to welcome Hatch to NexGen's growing high performance team in advancing the Rook I Project towards the start of construction. Hatch's exemplary reputation in the global mining sector and deep understanding of value-driven project delivery aligns perfectly with NexGen's commitment to elite standards and is a key step in the development of this leading global resource project. In parallel, the drafting of the Project's Environmental Impact Study and licensing workstreams nearing completion, together with regional exploration targeting new zones of potential Arrow-type mineralization, further exemplifies the NexGen team's commitment to the successful execution of multiple workstreams.”

“NexGen is excited to be partnering with Hatch—a company whose culture and project development ethic fits well with NexGen's vision and values,” shared Tony George, Chief Project Officer at NexGen. As we continue to progress through development milestones, it's rewarding to see top talent being attracted to our team in Saskatoon due to NexGen's growing reputation for elite standards in all that we do.”

NexGen holds the most dominant land position in the southwest Athabasca Basin of Saskatchewan, Canada. The Rook I property alone hosts the Tier One Arrow Deposit as well as the South Arrow discovery, the Harpoon discovery, the Bow discovery, and the Cannon discovery. The company’s primary focus is to continue through advanced engineering in support of mine and mill construction at the Arrow Deposit, and for further exploration drilling at untested locations and at known uranium occurrences on the Rook I property.

Following the successful completion of the Rook I Feasibility Study in February 2021, NexGen is transitioning into the next stage of advanced project development with the commencement of FEED. In line with the optimized project execution strategy, the FEED stage will advance overall engineering to a 40%-45% level of completion with associated cost estimates, fully define long-lead procurement actions, and further refine execution planning to prepare the project for the pending construction stage.

“We are excited to partner with NexGen on the FEED stage of the Rook I uranium project,” said Peter Gauthier, Project Manager at Hatch. “Their commitment to responsible mine development aligns with our own vision to create positive change through excellence in delivery and sustainability practices.”

The FEED stage is scheduled for completion in Q3 2022 and will be undertaken concurrently with the engagement, environmental assessment, and licensing workstreams. Find out more in the press release from NexGen.

- 30 -

For more information, please contact:

Lindsay Janca
Global Director, Public Relations
Tel: +1 905 403 4199
Email: media@hatch.com

About NextGen Energy Ltd.

NexGen is a British Columbia corporation focused on the development of the Rook I Project located in the southwestern Athabasca Basin, Saskatchewan, Canada into production. The Rook I Project is supported by a NI 43-101 compliant Feasibility Study which outlines elite environmental performance as well as industry-leading economics. NexGen has a highly experienced team of uranium industry professionals with a successful track record in the discovery of uranium deposits and in developing projects through discovery to production. The company is the recipient of the 2018 PDAC Bill Dennis Award for Canadian mineral discovery and the 2019 PDAC Environmental and Social Responsibility Award.

Find out more on www.nexgenenergy.ca.

About Hatch

Whatever our clients envision, our engineers can design and build. With over six decades of business and technical experience in the mining, energy, and infrastructure sectors, we know your business and understand that your challenges are changing rapidly. We respond quickly with solutions that are smarter, more efficient, and innovative. We draw upon our 9,000 staff with experience in over 150 countries to challenge the status quo and create positive change for our clients, our employees, and the communities we serve.

For the latest news, follow us on Twitter and LinkedIn, or subscribe to our newsletter!

Find out more on www.hatch.com.