EX-99.1

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EXHIBIT 99.1

Exhibit 99.1

Eagle Nuclear Energy Provides Third Quarter 2026 Corporate Update

RENO,

NV – October 13, 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 third quarter, ending August 31, 2026. This quarter reflects continued progress of the Company’s flagship Aurora Uranium Project (“Aurora”), which hosts 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 third quarter we maintained our disciplined approach to advancing our core assets, as we continue to work towards development of an integrated nuclear energy platform combining domestic uranium resources with advanced SMR technology,” said Eagle CEO Mark Mukhija. “Eagle continues to build momentum since its public debut in February 2026, advancing initiatives and building partnerships that will position Eagle to become a key contributor to the long-term security of America’s domestic nuclear fuel supply chain.”

“We have made significant progress in gathering critical data, evaluating sustainable development practices and establishing strategic partnerships to support Aurora’s long-term growth and advancement. This includes recent technical engagements with Yukuskon Professional Services, LLC, BBA USA Inc. and SLR International Corporation, all of which will play an integral role in the execution of the drill program at Aurora. These engagements come as we continue to progress towards the planned Pre-Feasibility Study (“PFS”) at Aurora, which is expected to be completed in the second half of 2027. We are currently awaiting the necessary permit approvals from Oregon state regulators before commencing drilling activities at Aurora. With all major operational contractors now in place, we are well positioned to efficiently execute the planned PFS once the requisite approvals are secured,” continued Mukhija.

“Within our SMR program, we continue to advance our reactor development initiatives, building on the engagement of Tensor Medium Corporation (“Tensor Medium”) announced in June. Tensor Medium’s AI-enabled reactor modeling and simulation capabilities are expected to support the optimization of our next-generation SMR technology design, and we believe this collaboration is an important step in advancing our broader SMR development strategy.”

“As our Aurora Project and SMR program continue to develop, we have seen Eagle increasingly garner more recognition in the global nuclear energy markets. In June, Eagle was added to the Sprott Junior Uranium Miners ETF (NASDAQ: URNJ), one of the leading ETFs providing exposure to uranium companies. Following that inclusion, in August, Eagle was named to the Solactive Global Uranium & Nuclear Components Total Return Index, which tracks key companies across the nuclear fuel cycle and serves as a benchmark for ETFs to gain exposure to the global nuclear industry and companies that define the sector. Alongside the addition to the Solactive Index, Eagle now qualifies for the Global X Uranium ETF (NYSE Arca: URA), one of the world’s foremost nuclear and uranium focused ETFs, with approximately $5 billion in net assets. Eagle’s inclusion in this Index reflects our growing presence in the global nuclear space and uranium supply chain.”

“We remain encouraged by the recent progress across our business as we continue to advance the Aurora Project in a disciplined and responsible manner, alongside the development of our advanced SMR technology platform. The third quarter established a strong foundation for the next phase of development at Aurora as we work to support a more secure and resilient domestic nuclear fuel supply chain amid growing energy demand. We remain committed to executing our strategic objectives and look forward to sharing further updates as key milestones are achieved."

Recent Operational Updates

·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.

·June 2026: Added to the Sprott Junior Uranium Miners ETF, one of the leading ETFs providing exposure to uranium companies.

·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.

·August 2026: Added to the Solactive Global Uranium & Nuclear Components Total Return Index, qualifying Eagle for inclusion in the Global X Uranium ETF, one of the world’s preeminent nuclear- and uranium-focused ETFs. Selected CBIZ CPAs P.C. as independent registered public accounting firm.

·September 2026: Appointed LSN Partners to lead government affairs efforts with former Azarga Uranium CEO Blake