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Get filing alertsNRC begins formal review of Nano Nuclear's KRONOS reactor permit, targets 2027 completion
Filed June 25, 2026 · Period ending June 25, 2026 · ~1 min read
Key Changes
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Nuclear Regulatory Commission formally commenced review of KRONOS microreactor construction permit on June 23, 2026, following May 2026 application acceptance. Environmental assessment expected Spring 2027, safety evaluation early Fall 2027.
Item 8.01 — Other Events verify on EDGAR → -
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NRC timeline supports company's expectation that construction at University of Illinois could begin second half of 2027, subject to regulatory approvals. KRONOS positioned as first commercially-ready microreactor in formal U.S. licensing process.
Item 8.01 — Other Events verify on EDGAR → -
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Subsidiary Advanced Fuel Transportation acquired Secured Transportation Services in May 2026, expanding nuclear materials transport capabilities under leadership of former major transportation company executives.
Item 8.01 — Other Events verify on EDGAR →
Summary
Nano Nuclear Energy disclosed that the Nuclear Regulatory Commission has begun formal review of its construction permit application for the KRONOS microreactor at the University of Illinois.
The NRC outlined a review schedule projecting environmental assessment completion in Spring 2027 and safety evaluation in early Fall 2027, which the company believes supports a potential construction start in the second half of 2027 pending approvals. This marks a significant regulatory milestone for the company's microreactor commercialization efforts.
The formal review commencement positions KRONOS among a select group of advanced reactor programs progressing through U.S. regulatory licensing. For retail investors, this represents tangible progress in a multi-year regulatory pathway required before commercial deployment. The disclosed timeline provides visibility into key approval milestones over the next 12-18 months. Separately, the company noted its May 2026 acquisition of Secured Transportation Services, which expands its nuclear materials transport capabilities through subsidiary Advanced Fuel Transportation.
Section-by-Section Diff
Event · Exhibit 99.1
NRC began formal review of NANO Nuclear's KRONOS reactor construction permit, targeting 2027 completion and H2 2027 construction start.
Added in current filing · view on EDGAR →
On June 23, 2026, the NRC publicly announced that it had met with representatives from U. of I. and NANO Nuclear to mark the start of its review of the CPA and the planned KRONOS MMR™ research reactor project on the U. of I. campus.
The Nuclear Regulatory Commission formally began reviewing NANO Nuclear's Construction Permit Application for its KRONOS microreactor at the University of Illinois. This follows the NRC's May 18, 2026 acceptance of the application and initiates the environmental, safety, and technical review process required before construction can begin.
Added in current filing · view on EDGAR →
The meeting also provided additional visibility into NRC’s anticipated review schedule, indicating that the environmental assessment is expected to be completed in the Spring of 2027 and the safety evaluation in early Fall of 2027.
The NRC outlined a review schedule projecting environmental assessment completion in Spring 2027 and safety evaluation in early Fall 2027. The company believes this timeline supports its previously disclosed expectation that construction activities could begin in the second half of 2027, subject to regulatory approvals.
Added in current filing · view on EDGAR →
NANO Nuclear believes the commencement of formal NRC review activities further reinforces the KRONOS MMR™ system’s position as the first commercially-ready microreactor developer and among a select group of advanced reactor programs progressing through the formal U.S. regulatory licensing process
The company asserts that the KRONOS reactor is positioned as the first commercially-ready microreactor developer and among a select group of advanced reactor programs in formal U.S. regulatory licensing. This claim positions NANO Nuclear as a potential first-mover in the commercial microreactor market.
Event · Item 8.01 — Other Events
NNE announced continued progress in NRC's formal review of its Construction Permit Application for KRONOS MMR™ deployment at UIUC.
Added in current filing · verify on EDGAR →
Nano Nuclear Energy Inc. (the “Company”) issued a press release announcing continued progress in the U.S. Nuclear Regulatory Commission’s formal review of the Construction Permit Application for the deployment of the Company’s KRONOS MMR™ Energy System at the University of Illinois Urbana-Champaign.
The company disclosed that the U.S. Nuclear Regulatory Commission is making continued progress in its formal review of NNE's Construction Permit Application. This application is for deploying the company's KRONOS MMR™ Energy System at the University of Illinois Urbana-Champaign. The disclosure indicates the regulatory approval process is advancing, which is a key milestone for the company's microreactor technology commercialization.
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Figures/quotes linked to EDGAR · Narrative written by AI · Jun 26, 2026 · How we verify