Confirmation of secondary listing of ASPI on the main board of the JSE Limited

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")


CONFIRMATION OF SECONDARY LISTING OF ASPI ON THE MAIN BOARD OF THE JSE LIMITED


The Company is pleased to announce, subsequent to the abridged pre-listing statement released on the Stock
Exchange News Service on Friday, 8 August 2025, that its secondary listing on the Main Board of the JSE Limited
("JSE") has become effective at the opening of trading on the JSE this morning.


Johannesburg
27 August 2025

Sponsor
Valeo Capital Proprietary Limited

Prescient Securities
South African Stockbroker

Date: 27-08-2025 11:30:00
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