NUCLW

EX-99.1

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EXHIBIT 99.1

Exhibit 99.1

Eagle Nuclear Energy Provides Second Quarter 2026 Corporate Update

RENO,

NV – July 20, 2026 – Eagle Nuclear Energy Corp. (“Eagle” or the “Company”)

(NASDAQ: NUCL), a next-generation nuclear energy company, is pleased to provide a corporate update for the second quarter, ending May 31, 2026, highlighting continued advancement across its two core value drivers: the development of the largest conventional, measured and indicated uranium deposit in the United States, and the progression of its proprietary Small Modular Reactor (“SMR”) technology platform.

Management Commentary

“During the second quarter we continued our diligent focus on advancing our flagship Aurora Uranium Project (“Aurora”), which is one of the largest undeveloped uranium deposits in the US, toward a Pre-Feasibility Study (“PFS”) scheduled for completion in late-2027,” said Mark Mukhija, Eagle’s CEO. “This quarter also represented a significant milestone for the Company, as it marked the first full quarter for Eagle as a publicly traded company. As global demand for secure domestic uranium supply continues to strengthen, management believes that Eagle is uniquely positioned to become a cornerstone of America's future nuclear fuel supply chain.”

“A critical milestone along the path to a PFS at Aurora is the drill program that has been specifically designed to provide samples and data that will feed into the various studies comprising the PFS. Activity this quarter was highlighted by the completion of several key environmental and site-readiness initiatives at Aurora in preparation for the commencement of the PFS-related drill program. We also launched an expansive environmental baseline studies campaign, which will support environmental impact assessments, mine design optimization and future permitting at Aurora,” said Mukhija. “These studies will remain ongoing as we look to develop Aurora in an environmentally responsible and sustainable manner.”

“We have moved quickly to collect critical data, explore sustainable practices and forge foundational partnerships that will set the course for future growth at Aurora. In addition to the technical work programs at Aurora, we have also taken the initiative to become more involved in the discussions around the challenges, solutions and critical necessity of domestic uranium production within the United States. Over the early summer months, we have held several meetings with representatives from the Uranium Producers of America and U.S. Department of Energy’s Office of Critical Minerals and Energy Innovation, in Washington DC. These conversations are essential to ensuring the policies and investments needed to strengthen the nation's uranium industry keep pace with growing demand,” continued Mukhija.

“Within our SMR program, we continue to take steps to advance our reactor initiative highlighted by the recent engagement of Tensor Medium Corporation (“Tensor Medium”) announced in June. Tensor Medium’s AI-enabled reactor modeling and simulation capabilities will directly support our efforts to optimize the design of our next-generation SMR technology. We believe this partnership is integral in the evolution of our broader SMR development initiatives.”

“We are encouraged by our recent achievements as we continue to methodically and responsibly advance the Aurora project, which anchor’s Eagle’s long-term strategy, alongside advanced SMR technology. The second quarter has set the stage for continued development at our Aurora site, as we work to help restore a secure domestic nuclear supply chain that addresses the rapid growth in energy demand. We are excited to continue executing on our strategic priorities and will provide further updates as we progress ahead.”

Recent Operational Updates

·April 2026: Announcement of expected drill program, engagement with Harris Exploration Drilling & Associates Inc. to provide the drill rigs that will be used to complete the drill program at Aurora. Formally filed our permit applications with the federal Bureau of Land Management (“BLM”) and the Oregon Department of Geology and Mineral Industries (“DOGAMI”). All of these actions have advanced Eagle towards a pre-feasibility study and development of our Aurora site.

·May 2026: Commenced a comprehensive environmental baseline studies campaign in advance of the PFS, designed to collect critical environmental data at the Aurora site. Completed meteorological station installation, wetland delineation study, and cultural survey to help support the broad advancement of Aurora.

·June 2026: Engaged Tensor Medium to support SMR program, bringing AI-enabled reactor modeling and simulation capabilities to Eagle’s next-generation SMR development efforts.

·July 2026: Announced partnerships with Yukuskon Professional Services, LLC, BBA USA Inc. and SLR International Corporation to help execute the Aurora drill program and progress towards the expected PFS.

Liqu

EX-99.1

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EXHIBIT 99.1

Exhibit 99.1

Eagle Nuclear Energy Provides First Quarter 2026 Corporate Update

RENO,

NV – April 15, 2026 – Eagle Nuclear Energy Corp. (“Eagle” or the “Company”) (NASDAQ:

NUCL), a next-generation nuclear energy company which owns the largest conventional, measured and indicated uranium deposit in the United States, today announced a corporate update and financial results for the first quarter of 2026, ending February 28, 2026.

Management Commentary

“During the first quarter, Eagle made significant progress as we completed our business combination with Spring Valley Aqcuisition Corp. II, commenced trading on the Nasdaq, and simultaneously advanced our flagship Aurora Uranium Project (“Aurora”)  site,” stated, Mark Mukhija, Eagle’s CEO. “In subsequent weeks, we have seen that momentum continue, led by the announcement of our drill program plan at Aurora which is scheduled to commence in July 2026. The 47 diamond drill hole program, collectively totaling 27,000 ft of drilling, advances one of the largest undeveloped uranium deposits in the U.S. toward a Pre-Feasibility Study (“PFS”), which is expected to be completed in the second half of 2027.”

“Alongside our drill program announcement, we have moved swiftly to secure drill rigs with a premier contactor in the mining industry and file permit applications that are essential to beginning the program,” said Mukhija. “Aurora anchors Eagle’s long-term strategy to develop an integrated nuclear energy platform combining domestic uranium resources with advanced SMR technology, and these steps move us closer to this goal.”

“We are excited about the path forward for Eagle and our positioning to help restore a secure domestic nuclear supply chain that addresses the rapid growth of electricity demand. We look forward to providing further updates as our progress continues.”

Recent Operational Updates

·January 2026: Announced engagement with BBA USA Inc. (“BBA”) to develop a comprehensive “Gap Analysis” study designed to address data gaps at Aurora in order to advance the Project toward a PFS. BBA designed and optimized the number, location, and orientation of drill holes to achieve critical objectives in the completion of the PFS.

·February 2026: Completed business combination (the “Business Combination”) with Spring Valley Acquisition Corp. II (“SVII”). This resulted in the new combined company, Eagle Nuclear Energy Corp., commencing trading on the Nasdaq on February 25, 2026 under the ticker symbol “NUCL”.

·March 2026: Selected SLR International Corporation (“SLR”) to lead the permitting effort at Aurora. The engagement with SLR initially focused on filing permit applications with the federal Bureau of Land Management (“BLM”) and the Oregon Department of Geology and Mineral Industries (“DOGAMI”) for approval of the Aurora drill program. Additionally, we joined the Uranium Producers of America (“UPA”). Membership in UPA highlights Eagle’s commitment to strengthening America’s domestic uranium supply.

·April 2026: Announcement of drill program, engagement with Harris Exploration Drilling & Associates Inc. to provide the drill rigs that will be used to complete the drill program at Aurora. Formally filed our permit applications with BLM and DOGAMI. All of these actions have advanced Eagle towards a pre-feasibility study and development of our Aurora site.

Liquidity and Balance Sheet

At February 28, 2026, the Company had a cash balance of $31.3 million and no outstanding interest-bearing debt, with liabilities consisting primarily of operating obligations.

Additional detail on the Company’s quarterly financial results can be found in the recent 10-Q filed with the SEC on April, 15, 2026.

About Eagle Nuclear Energy Corp.

Eagle Nuclear Energy Corp. is a next-generation nuclear energy company

that combines domestic uranium exploration with exclusive Small Modular Reactor (SMR) technology. The Company owns the largest conventional, measured and indicated uranium deposit in the United States, located in southeastern Oregon. This includes the Aurora deposit, with 32.75Mlbs Indicated and 4.98Mlbs Inferred (SK-1300 TRS) of near-surface uranium resource, and the adjacent Cordex deposit, which offers significant potential to expand the project’s overall resource inventory. By integrating advanced SMR technology with a sizeable uranium asset, Eagle is building an integrated nuclear platform positioned to help restore American leadership in the global nuclear industry.

For more information about Eagle Nuclear Energy Corp., visit www.eaglenuclear.com.

Cautionary Note Regarding Forward-Looking Statements

Certain statements included in this press release are not historical facts but are forward-looking statements. All statements other than statements of historical facts contained in this press release are forward-looking statements. Any statements that refer to projections, forecasts or other characterizations of future even