Form 8-K

8-K — Nano Nuclear Energy Inc.

Accession: 0001493152-26-030124

Filed: 2026-06-25

Period: 2026-06-25

CIK: 0001923891

SIC: 4911 (ELECTRIC SERVICES)

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — form8-k.htm (Primary)

EX-99.1 (ex99-1.htm)

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0001923891

2026-06-25

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UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

WASHINGTON,

D.C. 20549

FORM

8-K

CURRENT

REPORT

PURSUANT

TO SECTION 13 OR 15(d) OF THE

SECURITIES

EXCHANGE ACT OF 1934

Date

of Report (Date of earliest event reported): June 25, 2026

Nano

Nuclear Energy Inc.

(Exact

name of registrant as specified in its charter)

Nevada

001-42044

88-0861977

(State or other jurisdiction

(Commission

(IRS Employer

of incorporation)

File Number)

Identification No.)

Times Square, 30th Floor

New

York, New York 10018

(Address

of principal executive offices, including zip code)

Registrant’s

telephone number, including area code: (212) 634-9206

Not

Applicable

(Former

name or former address, if changed since last report)

Check

the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under

any of the following provisions:

☐

Written communications

pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant

to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications

pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications

pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities

registered pursuant to Section 12(b) of the Act:

Title

of each class

Trading

Symbol(s)

Name

of each exchange on which registered

Common

Stock, par value $0.0001 per share

NNE

The

Nasdaq Stock Market LLC

Indicate

by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405

of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging

growth company ☒

an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying

with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item

8.01 Other Events.

June 25, 2026, 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.

copy of the press release is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item

9.01 Financial Statements and Exhibits.

(d)

Exhibits

Exhibit No.

Description

99.1

Press Release of the Company.

104

Cover Page Interactive Data File (embedded within the

Inline XBRL document).

SIGNATURE

Pursuant

to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its

behalf by the undersigned hereunto duly authorized.

Dated: June 25, 2026

NANO Nuclear Energy Inc.

By:

/s/ James Walker

Name:

James Walker

Title:

Chief Executive Officer

EX-99.1

Filename: ex99-1.htm · Sequence: 2

Exhibit

99.1

NANO

Nuclear’s KRONOS MMR™ Program Advances as U.S. NRC Initiates Formal Review Activities with University of Illinois Urbana-Champaign

and NANO Nuclear Energy

Meeting

with NRC kicks off review activities and marks continued regulatory progress following acceptance of the KRONOS MMR™ Construction

Permit Application and supports previously disclosed expectations for initial construction activities to begin in the second half of

2027

New

York, N.Y., June 25, 2026 — NANO Nuclear Energy Inc. (NASDAQ: NNE) (“NANO Nuclear” or “the Company”),

a leading advanced nuclear micro modular reactor and technology company focused on developing clean energy solutions, today announced

continued progress in the U.S. Nuclear Regulatory Commission’s (“NRC”) review of the Construction Permit Application

(“CPA”) for deployment of NANO Nuclear’s KRONOS MMR™ Energy System at the University of Illinois Urbana-Champaign

(“U. of I.”).

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

meeting follows the agency’s formal acceptance of the KRONOS MMR™ CPA for review on May 18, 2026. Acceptance of the CPA initiated

the NRC’s formal environmental, safety and technical review process for the planned deployment of the KRONOS MMR™ system

at U. of I., representing a major advancement toward regulatory licensing, construction and future deployment of the reactor system.

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. NANO Nuclear believes these projected

review milestones are consistent with the Company’s previously disclosed expectation, announced following NRC acceptance of the

CPA, that the formal NRC review process could be completed during 2027, providing the opportunity for initial construction activities

on the U. of I. campus to commence during the second half of 2027, subject to regulatory approvals and other customary project requirements.

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 and highlights the Company’s broader strategy of accelerating commercialization through regulatory

engagement, engineering advancement and strategic partnerships.

Figure

1: Representatives from the U.S. Nuclear Regulatory Commission, University of Illinois Urbana-Champaign and NANO Nuclear Energy during

the NRC review kickoff meeting announced on June 23, 2026. Credit: U.S. Nuclear Regulatory Commission.

“The

commencement of formal NRC review activities represents an important progression in the licensing process for the KRONOS MMR™ system,”

said Milos Atz, Director of Safety Analysis at NANO Nuclear Energy. “With the Construction Permit Application now under

formal review, NRC staff can begin detailed evaluation of the environmental, safety and technical information supporting the proposed

deployment at the University of Illinois. We view this latest engagement as another indication that the project is advancing through

the regulatory process as anticipated, and we look forward to continuing our support of the NRC review activities in the months ahead.”

“The

NRC’s announcement that review activities are now underway demonstrates continued forward momentum for the KRONOS MMR™ program

following acceptance of the Construction Permit Application,” said James Walker, Chief Executive Officer of NANO Nuclear Energy.

“We are encouraged that the review schedule outlined by the NRC appears generally consistent with the timeline assumptions we previously

communicated following acceptance of the application. Our team remains focused on supporting the NRC review process, advancing engineering

activities and continuing preparations necessary to position the project for successful deployment at the University of Illinois. We

believe each step forward in the regulatory process further strengthens KRONOS MMR™’s position among the most advanced commercially

focused microreactor programs in the United States.”

KRONOS

MMR™, NANO Nuclear’s lead microreactor project, is a proprietary, stationary, high-temperature gas-cooled microreactor under

development, designed to provide clean, reliable energy for applications including data centers, industrial facilities, remote communities

and mining projects, military installations and process heat applications across a variety of end markets.

About

NANO Nuclear Energy, Inc.

NANO

Nuclear Energy Inc. (NASDAQ: NNE) is a North American advanced technology-driven nuclear energy company seeking to become a commercially

focused, diversified, and vertically integrated company across five business lines: (i) cutting edge portable and other microreactor

technologies, (ii) nuclear fuel supply chain, (iii) nuclear fuel transportation, (iv) nuclear applications for space and (v) nuclear

industry consulting services.

Led

by a world-class nuclear engineering team, NANO Nuclear’s reactor products in development include the proprietary KRONOS MMR™

Energy System, a stationary high-temperature gas-cooled reactor that is in construction permit pre-application engagement U.S. Nuclear

Regulatory Commission (NRC) in collaboration with University of Illinois Urbana-Champaign, “ZEUS”, a portable solid

core battery reactor, and the space focused, portable LOKI MMR™, each representing advanced developments in clean energy

solutions that are portable, on-demand capable, advanced nuclear microreactors.

Advanced

Fuel Transportation Inc. (AFT), a NANO Nuclear subsidiary, bolstered by the May 2026 acquisition of Secured Transportation Services

(STS), is led by former executives from the largest transportation company in the world and provides nuclear engineering and materials

transport services in the U.S. and globally. Through NANO Nuclear, AFT is the exclusive licensee of a patented high-capacity HALEU fuel

transportation basket developed by three major U.S. national nuclear laboratories and funded by the Department of Energy.

HALEU

Energy Fuel Inc. (HEF), a NANO Nuclear subsidiary, is focusing on the future development of a domestic source for a High-Assay, Low-Enriched

Uranium (HALEU) fuel fabrication pipeline for NANO Nuclear’s own microreactors as well as the broader advanced nuclear reactor

industry.

NANO

Nuclear Space Inc. (NNS), a NANO Nuclear subsidiary, is exploring the potential commercial applications of NANO Nuclear’s developing

micronuclear reactor technology in space. NNS is focusing on applications such as the LOKI MMR™ system and other power systems

for extraterrestrial projects and human sustaining environments, and potentially propulsion technology for long haul space missions.

NNS’ initial focus will be on cis-lunar applications, referring to uses in the space region extending from Earth to the area surrounding

the Moon’s surface.

For

more corporate information please visit: https://NanoNuclearEnergy.com/

For

further NANO Nuclear information, please contact:

Email:

IR@NANONuclearEnergy.com

Business Tel: (212) 634-9206

PLEASE

FOLLOW OUR SOCIAL MEDIA PAGES HERE:

NANO

Nuclear Energy LINKEDIN

NANO

Nuclear Energy YOUTUBE

NANO

Nuclear Energy X PLATFORM

Cautionary

Note Regarding Forward Looking Statements

This

news release and statements of NANO Nuclear’s management and collaborators in connection with this news release contain or may

contain “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended,

and the Private Securities Litigation Reform Act of 1995. In this context, forward-looking statements mean statements related to future

events, which may impact our expected future business and financial performance, and often contain words such as “expects”,

“anticipates”, “intends”, “explore,” “plans”, “aim,” “goal,”

“believes”, “potential”, “will”, “should”, “could”, “would” or

“may” or derivations of these words and other words of similar meaning about the future. In this press release, forward-looking

statements include those relating to the timeline for the NRC’s review of the CPA and the anticipated commencement of construction

the KRONOS MMR™ prototype at the U. of I., as well as statements regarding the Company’s development, regulatory and commercial

plans generally. These and other forward-looking statements are based on information available to us as of the date of this news release

and represent management’s current views and assumptions. Forward-looking statements are not guarantees of future performance,

events or results and involve significant known and unknown risks, uncertainties and other factors, which may be beyond our control.

For NANO Nuclear, particular risks and uncertainties that could cause our actual future results to differ materially from those expressed

in our forward-looking statements include but are not limited to the following: (i) risks related to our U.S. Department of Energy (“DOE”),

U.S. Nuclear Regulatory Commission (“NRC”), Canadian Nuclear Safety Commission (“CNSC”) or related state or other

U.S. or non-U.S nuclear licensing submissions, (ii) risks related the development of new or advanced technology and the acquisition of

complementary technology or businesses, including difficulties with design and testing, cost overruns, regulatory delays, integration

issues and the development of competitive technology, (iii) our ability to obtain contracts and funding to be able to continue operations,

(iv) risks related to uncertainty regarding our ability to technologically develop and commercially deploy a competitive advanced nuclear

reactor or other technology in the timelines we anticipate, if ever, (v) risks related to the impact of U.S. and non-U.S. government

regulation, policies and licensing requirements, including by the DOE, and the NRC, including those associated with the recently enacted

ADVANCE Act and the May 23, 2025 Executive Orders seeking to streamline nuclear regulation, and (vi) similar risks and uncertainties

associated with the operating a developing business a highly regulated, competitive and rapidly evolving industry, including that our

plans may change and we may use our cash on hand faster or in different ways than anticipated as our business requires. Readers are cautioned

not to place undue reliance on these forward-looking statements, which apply only as of the date of this news release. These factors

may not constitute all factors that could cause actual results to differ from those discussed in any forward-looking statement, and NANO

Nuclear therefore encourages investors to review other factors that may affect future results in its filings with the SEC, which are

available for review at www.sec.gov and at https://ir.nanonuclearenergy.com/financial-information/sec-filings. Accordingly,

forward-looking statements should not be relied upon as a predictor of actual results. We do not undertake to update our forward-looking

statements to reflect events or circumstances that may arise after the date of this news release, except as required by law.

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