ASP Isotopes updates on new LNG sales contract

ASP Isotopes Inc. reports that Tetra4 Proprietary Limited, a subsidiary of Renergen Limited and developer of the Virginia Gas Project in South Africa, has entered into a new contract for the sale of liquified natural gas to be produced at that project.

Rhea-AI Filing Summary

ASP Isotopes Inc. reports that Tetra4 Proprietary Limited, a subsidiary of Renergen Limited and developer of the Virginia Gas Project in South Africa, has entered into a new contract for the sale of liquified natural gas to be produced at that project. This information is furnished under Regulation FD as of August 6, 2026 and is provided via an attached press release, designated as Exhibit 99.1. The company states that these disclosures are not deemed filed for liability purposes under U.S. securities laws and notes that the press release contains forward-looking statements under the Private Securities Litigation Reform Act of 1995.

Key Figures

Disclosure date: August 6, 2026 Exhibit number: 99.1 Cover XBRL exhibit: 104

3 metrics

Disclosure date August 6, 2026 Date ASP Isotopes Inc. furnished the Regulation FD disclosure and press release

Exhibit number 99.1 Press Release describing Tetra4’s new LNG sales contract

Cover XBRL exhibit 104 Cover Page Interactive Data File embedded within the Inline XBRL document

Key Terms

Regulation FD, forward-looking, Private Securities Litigation Reform Act of 1995, Emerging growth company

4 terms

Regulation FD regulatory

"Item 7.01 Regulation FD Disclosure."

Regulation FD is a rule that prevents company insiders, like executives, from sharing important information with some people before others get it. It matters because it helps ensure all investors have equal access to key news, making the stock market fairer and reducing chances of insider trading.

forward-looking regulatory

"indicating that certain statements contained therein are “forward-looking” rather than historical."

Forward-looking describes statements, estimates or projections about a company’s future performance, plans or expectations rather than past results. Like a weather forecast for a business, these predictions help investors form expectations and decide whether to buy, hold or sell, but they are not guarantees and can change if conditions differ from assumptions. Investors use them to gauge management’s strategy and potential risks and rewards.

Private Securities Litigation Reform Act of 1995 regulatory

"includes “safe harbor” language pursuant to the Private Securities Litigation Reform Act of 1995"

Emerging growth company regulatory

"Emerging growth company"

An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did ASP Isotopes Inc. (NDRA) disclose about the Virginia Gas Project?

ASP Isotopes Inc. disclosed that Tetra4, a Renergen subsidiary and developer of the Virginia Gas Project, entered a new liquified natural gas (LNG) sales contract for LNG to be produced at the project in South Africa.

Does ASP Isotopes Inc. (NDRA) describe any financial terms of the new LNG contract?

No specific financial terms of the new LNG sales contract are described. The company only reports that Tetra4 entered into a new contract for LNG produced at the Virginia Gas Project via an attached press release.

How is the new LNG contract information treated under U.S. securities laws for NDRA?

The LNG contract information is furnished under Item 7.01 Regulation FD and explicitly not deemed “filed” for Section 18 or Securities Act liability, nor incorporated by reference into other SEC filings.

What exhibit did ASP Isotopes Inc. (NDRA) attach regarding the LNG contract?

ASP Isotopes Inc. attached Exhibit 99.1, a press release dated August 6, 2026, which provides details on Tetra4’s new LNG sales contract for production at the Virginia Gas Project in South Africa.

Does the ASP Isotopes Inc. (NDRA) disclosure include forward-looking statements?

Yes. The company notes the press release includes forward-looking statements under the Private Securities Litigation Reform Act of 1995 and includes related safe harbor language for such statements.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/06/2026 - 08:18 AM Accepted by SEC EDGAR 08/06/2026 - 08:15 AM Learn about SEC filing dates

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): August 06, 2026

ASP Isotopes Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware			001-41555	87-2618235
(State or Other Jurisdiction of Incorporation)			(Commission File Number)	(IRS Employer Identification No.)
2200 Ross Avenue Suite 4575E
Dallas, Texas				75201
(Address of Principal Executive Offices)				(Zip Code)

Registrant’s Telephone Number, Including Area Code: (214) 432-8219

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 $0.01		ASPI		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 ☒

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 August 6, 2026, ASP Isotopes Inc. (the “Company”) issued a press release announcing that Tetra4 Proprietary Limited, a subsidiary of Renergen Limited (“Renergen”) and the developer of the Virginia Gas Project, has entered into a new contract for the sale of liquified natural gas (LNG) to be produced at the Virginia Gas Project in the Free State, South Africa, which is attached hereto as Exhibit 99.1 and is incorporated by reference herein (the “Press Release”).

The information in this Item 7.01 and in the Press Release shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, and shall not be incorporated by reference into any filing with the U.S. Securities and Exchange Commission, whether made by the Company before or after the date hereof, regardless of any general incorporation language in such filing.

The Press Release includes “safe harbor” language pursuant to the Private Securities Litigation Reform Act of 1995, as amended, indicating that certain statements contained therein are “forward-looking” rather than historical.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.	Description
99.1	Press Release dated August 6, 2026.
104	Cover Page Interactive Date File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

			ASP ISOTOPES INC.
Date:	August 6, 2026	By:	/s/ Donald G. Ainscow
		Name: Title:	Donald G. Ainscow Executive Vice President, General Counsel and Secretary