Form 4 – Statement of changes in beneficial ownership

ASP ISOTOPES INC.
(Incorporated in the State of Delaware,
United States of America)
(Delaware file number 6228898)
Ticker Symbol: NASDAQ: ASPI
ISIN: US00218A1051
LEI: 6488WHV94BZ496OZ3219
JSE Share Code: ISO
("ASPI" or "the Company")


FORM 4 – STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP


ASPI stockholders are advised that on 17 April 2026, three Forms 4 have been filed with the U.S. Securities
and Exchange Commission.

Copies of the Forms 4 can be found at: SEC FORM 4, SEC FORM 4 and SEC FORM 4.

The Company has a primary listing on the Nasdaq and a secondary listing on the Main Board of the JSE.


20 April 2026


Sponsor
Valeo Capital Proprietary Limited

Date: 20-04-2026 08:05:00
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