Form 8-K

8-K — Deep Isolation Nuclear, Inc.

Accession: 0001213900-26-106187

Filed: 2026-10-02

Period: 2026-10-01

CIK: 0001918080

SIC: 4953 (REFUSE SYSTEMS)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — ea0307514-8k_deep.htm (Primary)

EX-99.1 — PRESS RELEASE DATED OCTOBER 1, 2026 (ea030751401ex99-1.htm)

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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):

October 1, 2026

DEEP ISOLATION NUCLEAR, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware

000-56406

87-4225965

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

5717 Legacy Drive, Suite 250

Office 2079

Plano, TX

75024

(Address of Principal Executive Offices)

(Zip Code)

(509)-943-5222

(Registrant’s telephone number, including

area code)

2001 Addison Street, Suite 300

Berkeley, CA 94704

(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 (see General

Instruction A.2. below):

☐

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: None.

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 ☒

If 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 7.01 Regulation FD Disclosure.

On October 1, 2026, Deep Isolation Nuclear, Inc.,

a Delaware corporation (the “Company”), issued a press release (the “Press Release”) announcing that the Texas

Railroad Commission has issued a drilling permit for the Company’s full-scale, non-radioactive Commercialization Pilot near Cameron,

Texas, which will allow the project to advance from engineering and design toward construction and field activities at the demonstration

site.

A copy of the Press Release being furnished as

Exhibit 99.1 to this Current Report on Form 8-K.

The information in this Current Report on Form

8-K, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934,

as amended (the “1934 Act”), nor shall it be deemed “incorporated by reference” into any filing under the Securities

Act of 1933, as amended, or the 1934 Act, except as may be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

Exhibit

Number

Description

99.1

Press Release dated October 1, 2026

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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.

DEEP ISOLATION NUCLEAR, INC.

Date: October 2, 2026

By:

/s/ Rodney Baltzer

Rodney Baltzer

President and Chief Executive Officer

EX-99.1 — PRESS RELEASE DATED OCTOBER 1, 2026

EX-99.1

Filename: ea030751401ex99-1.htm · Sequence: 2

Exhibit 99.1

Press Release, October 1, 2026

Deep Isolation Advances Nuclear Waste Disposal

Demonstration with Issuance of Texas Drilling Permit

Regulatory Authorization

Supports Deep Isolation’s Plans to Move Its Full-Scale, Non-Radioactive Commercialization Pilot Toward Construction and Field Activities

BERKELEY, CA –

Deep Isolation Nuclear, Inc. (OTCQB: DBHL) (“Deep Isolation” or the “Company”), a leading innovator in nuclear

waste disposal technology, today announced that the Texas Railroad Commission has issued a drilling permit for the Company’s full-scale,

non-radioactive Commercialization Pilot near Cameron, Texas. The regulatory authorization allows the project to advance from engineering

and design toward construction and field activities at the demonstration site.

“Receipt of this

permit is a major milestone for Deep Isolation as we move the development of our deep borehole disposal technology into field activities,”

said Jesse Sloane, Executive Vice President of Engineering at Deep Isolation. “The Commercialization Pilot is designed to demonstrate,

at full scale and at depth, the integrated technologies and operations that underpin our deep borehole disposal solution. Reaching this

point reflects a tremendous amount of rigorous, high-quality work by our team and our project collaborators. We are incredibly excited

to move into the construction and field work phase together with these collaborators and bring years of engineering and planning into

the field.”

“This milestone

demonstrates the technical design, project preparation, and collaboration behind the Commercialization Pilot,” said Steve Haden,

Senior Vice President, Project Management, at Halliburton. “As we drill a new well for this effort, Halliburton will apply its subsurface,

drilling, and well construction experience to support the deployment of Deep Isolation’s technology in a new application and assist

the project team.”

The Commercialization

Pilot is designed as a full-scale, end-to-end demonstration of Deep Isolation’s deep borehole disposal technology using non-radioactive

materials. The project aims to demonstrate key operational activities associated with the Company’s solution, providing field data

and operational experience intended to support future commercial deployment.

The Texas project brings

together Deep Isolation with the Deep Borehole Demonstration Center, Halliburton (NYSE: HAL), Amentum (NYSE: AMTM), NAC International

(TYO: 7004), and Occlusion Nuclear Solutions. With the drilling permit issued, the project team plans to advance site and construction

activities in preparation for subsequent drilling and subsurface testing.

The drilling permit represents

another step toward demonstrating how proven drilling practices can be adapted for deep borehole disposal of spent nuclear fuel and high-level

radioactive waste. By demonstrating its system at full scale without radioactive material, Deep Isolation aims to generate practical engineering

and operational experience that can inform future commercial projects.

About Deep Isolation

Deep Isolation (OTCQB:

DBHL) is the first company to undertake development of technologies for nuclear waste disposal in deep boreholes. When commercialized,

Deep Isolation’s solution will offer a unique approach to help countries identify, plan for and complete the necessary steps to

dispose of their nuclear waste inventories. With over 100 patents issued to date, Deep Isolation’s technology is being designed

to leverage proven drilling practices to allow safe isolation of waste deep underground in horizontal, vertical, or slanted borehole repositories.

Deep Isolation’s Universal Canister System was developed through a three-year project funded by the U.S. Department of Energy’s

Advanced Research Projects Agency–Energy and is engineered to support integrated management of spent fuel and high-level radioactive

waste from legacy and advanced reactors across storage, transportation, and eventual disposal. In January 2026, Deep Isolation launched

a full-scale, at-depth deep borehole Commercialization Pilot for its solution at Cameron, Texas, in collaboration with the Deep Borehole

Demonstration Center, Halliburton (NYSE: HAL), Amentum (NYSE: AMTM), NAC International (TYO: 7004), and Occlusion Nuclear Solutions.

For more information,

visit: deepisolation.com.

###

Media Contact:

Sophie McCallum

media@deepisolation.com

Investor Contact:

Caldwell Bailey

InvestorRelations@deepisolation.com

Forward-Looking Statements

Statements contained

in this news release that are not historical facts are “forward-looking information” or “forward-looking statements”

(collectively, “forward-looking statements”) within the meaning of Section 27A of the Securities Act and Section 21E of the

Securities Exchange Act of 1934, as amended. Forward-looking statements include, but are not limited to, statements regarding our plans,

objectives and expectations for our business, the future growth of our business and the nuclear energy and nuclear waste disposal industries

as a whole, and future benefits expected to arise from our strategic partnerships. In certain cases, forward-looking statements can be

identified by the use of words and phrases or variations of words and phrases or statements such as “may,” “should,”

“expect,” “intend,” “plan,” “anticipate,” “believe,” “estimate,”

“predict,” “will,” “could,” “project,” “target,” “potential,”

“continue” and similar expressions. Forward-looking statements are based on management’s belief and assumptions, including

current expectations and projections about future events and trends, and on information currently available to management.

Forward-looking statements

in this or any other news release are subject to a number of risks, uncertainties, and assumptions that could cause actual results to

be materially different from those expressed or implied by such forward-looking statements. Such risks, uncertainties, and assumptions

are subject to a number of factors, including, among others: the failure of a market to develop for our deep borehole disposal solutions

as quickly as we expect or at all; a failure of demand for our solution to develop sufficiently; regulatory and legal developments, including

issues relating to obtaining regulatory approvals or permissions on the timelines we expect or at all; our lack of profitability; delays

or failure in our initiative to complete a full-scale, at-depth demonstration of our Universal Canister System and our deep borehole solution;

our failure to enter into contracts with customers or, once we do enter into contracts, to continue such contractual relationships or

to receive new contract awards; our dependency on governmental contracts and awards and our ability to finalize negotiations on same;

our failure to manage our growth effectively or to execute our business plan; our failure to sustain and expand relationships with governmental

entities and strategic partners; a failure in the assumptions or analyses we have used in supporting forecasts or plans; our inability

to commercialize our products at scale; the development or deployment of other technologies or solutions supplanting or competing with

our technologies; challenges to our intellectual property; failures to protect, maintain, enforce, and enhance our intellectual property,

and claims by others of intellectual property infringement; political and public perceptions of nuclear energy, including perceptions

as to accidents or other high-profile events involving nuclear power facilities or radioactive materials; our liquidity and ability to

raise capital; any inability to control operating and project costs and project delays or other project-related problems; security (including

cybersecurity) breaches or disruptions; geopolitical, macroeconomic, domestic events or crises, including supply chain disruptions and

other risks and uncertainties outside of our control; weather and effects of climate change; and litigation or legal proceedings that

may be brought against us.

The foregoing is not

an exhaustive list of all the factors that may cause any forward-looking statements to prove inaccurate or our actual results to differ

materially from our expectations and forecasts. Moreover, we operate in a highly regulated environment. New risks emerge from time to

time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent

to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking

statements we may make. In light of these risks, uncertainties, and assumptions, the future events and trends discussed in this release

may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements,

and we cannot guarantee future results, performance, or achievements. Accordingly, readers should not place undue reliance on forward-looking

statements. We undertake no obligation to update any forward-looking statements for any reason after the date of this release or to conform

these statements to actual results or revised expectations, except as required by law.

Additional information

concerning the factors above and other factors will be found in the Company’s public filings with the Securities and Exchange Commission

(the “SEC”), including the sections titled “Forward-Looking Statements” and “Risk Factors” in the

Company’s Reports on Form 10-K and 10-Q for the fiscal year ended December 31, 2025 and the quarter ending March 31, 2026, respectively,

as filed with the SEC on March 30, 2026, our Form S-1, originally filed August 18, 2025 and subsequently amended, our Proxy Statement

for our 2026 Annual Meeting as filed on April 29, 2026, and in filings with the SEC that will be made in the future. The Company’s

SEC filings are available free of charge at www.sec.gov or upon written request to Deep Isolation at InvestorRelations@deepisolation.com

or CorpSec@deepisolation.com.

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