Nano Nuclear Energy Achieves Critical Regulatory Milestone: Construction Permit Application for KRONOS MMR™ Microreactor Submitted to NRC

Key Highlights

• Construction Permit Application (CPA) Submitted: Nano Nuclear Energy Inc. (NASDAQ: NNE) has, in partnership with The Grainger College of Engineering at the University of Illinois Urbana-Champaign, submitted a Construction Permit Application (CPA) for its KRONOS MMR™ microreactor to the U.S. Nuclear Regulatory Commission (NRC).
• Industry Leadership: Nano Nuclear becomes the first commercially-ready microreactor developer and only the third commercially-ready Generation IV advanced reactor developer to reach the CPA stage, joining a select group of advanced nuclear companies progressing toward commercial deployment.
• Transition to Execution Phase: This milestone marks a shift from conceptual and R&D phases to formal NRC licensing and “build-ready” status, distinguishing Nano Nuclear from early-stage competitors.
• Strategic Partnership: The CPA was filed in collaboration with the University of Illinois Urbana-Champaign, where the first deployment of the KRONOS MMR™ is planned.

Details for Investors

The submission of the CPA is one of the most significant milestones in the nuclear reactor development lifecycle. Unlike earlier conceptual work, a CPA requires:

• Advanced engineering and safety analyses
• Site-specific evaluation and environmental assessments
• Demonstration of compliance with NRC frameworks
• Extensive documentation and continuous engagement with NRC staff

Achieving this milestone is widely regarded within the industry as a key indicator of technical maturity and a company’s ability to move from concept to commercial reality. The process reflects years of engineering development, thousands of pages of documentation, and rigorous regulatory alignment.

What Makes This News Price-Sensitive

• Clear Path to Commercialization: This achievement indicates that Nano Nuclear’s KRONOS MMR™ is not just a design, but an energy system actively moving toward construction, licensing, and commercial deployment. This substantiates the company’s execution capability and dramatically increases the likelihood of near-term revenue generation.
• First-Mover Advantage: With global demand for clean, reliable baseload power increasing—driven by trends such as AI, electrification, and industrial decarbonization—companies that can successfully navigate the regulatory pathway now are best positioned to capture market share in a tightening energy market.
• Scalable Commercial Vision: Nano Nuclear’s approach is differentiated by its focus on building repeatable, commercially viable systems rather than limited R&D demonstrations. The company aims for standardized manufacturing and fleet-scale deployment across multiple markets.
• Reduced-Scale Demo and Technical Facility: Following the CPA, Nano Nuclear will focus on constructing a reduced-scaled, non-nuclear engineering demonstration unit at its newly renovated Oak Brook, Illinois technical and demonstration facility, showcasing tangible progress and reducing technical risks.
• Potential Regulatory Acceleration: The company estimates the NRC review period for the CPA to take approximately 12 months, after which it could proceed to construction authorization, reactor operation, and full commercial licensing.

Leadership Commentary

Florent Heidet, CTO of Nano Nuclear: “Submitting the Construction Permit Application to the NRC is a defining moment for Nano Nuclear. This milestone represents years of engineering, regulatory engagement, and disciplined execution. It is where advanced nuclear projects begin to separate into those that are ready for execution and those still requiring significant R&D efforts.”

Jay Yu, Founder and Chairman: “Reaching the CPA stage places Nano Nuclear in a small group of companies advancing toward commercial deployment at scale. This process demands a significant level of technical maturity, regulatory alignment, and operational readiness. With this milestone achieved, our engineering teams are now laser focused on building out a reduced-scaled KRONOS MMR™ demonstration unit in our newly renovated facility.”

Caleb Brooks, Professor at The Grainger College of Engineering: “We have worked diligently alongside our partners at Nano Nuclear Energy to ensure our goals in constructing the first KRONOS micro modular reactor (MMR) on the university’s campus can become a reality. By submitting the Construction Permit Application to the NRC, we are taking the next step in signifying that the work will be done correctly and precisely.”

Broader Business Updates

• Nano Nuclear operates across five business lines: portable microreactor technologies, nuclear fuel fabrication, nuclear fuel transportation, nuclear space applications, and nuclear industry consulting.
• The company also develops the ZEUS™ solid core battery reactor and the space-focused, portable LOKI MMR™.
• Subsidiaries include Advanced Fuel Transportation Inc. (AFT), focusing on HALEU fuel transportation, and HALEU Energy Fuel Inc. (HEF), aiming to develop a domestic HALEU fuel fabrication pipeline. Nano Nuclear Space Inc. (NNS) is exploring commercial space applications for its microreactor technology.

Risks and Forward-Looking Statements

While this milestone is a strong indicator of technical and regulatory progress, investors should note that CPA acceptance and subsequent NRC review are subject to numerous risks. These include possible regulatory delays, technical development risks, cost overruns, competitive pressures, shifts in government policy, and funding challenges. The company’s ability to commercialize its technology within projected timelines is not guaranteed.

Conclusion

The submission of the Construction Permit Application for the KRONOS MMR™ to the NRC is a pivotal, price-sensitive event for Nano Nuclear Energy Inc. It highlights the company’s transition from concept to execution, marks it as a leader in the microreactor space, and positions it for potential first-mover advantage in a rapidly evolving energy market. Investors should closely monitor the outcome of the NRC review and subsequent progress toward construction and commercialization.

Disclaimer: The information provided in this article is for general informational purposes only and should not be construed as investment advice. Investors are encouraged to conduct their own due diligence and consult with financial advisors before making investment decisions. This article may contain forward-looking statements that involve risks, uncertainties, and assumptions; actual results may differ materially from those expressed or implied.

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