SCHEDULE 13G 0001389277 XXXXXXXX LIVE Common Stock 03/31/2025 0001921865 ASP Isotopes Inc. 00218A105 601 PENNSYLVANIA AVENUE NW SOUTH BUILDING, SUITE 900 WASHINGTON DC 20004 Rule 13d-1(b) BNP Paribas Asset Management UK Ltd X0 3638215.00 0.00 3638215.00 0.00 3628215.00 5.1 IA ASP Isotopes Inc. 601 PENNSYLVANIA AVENUE NW, SOUTH BUILDING, SUITE 900, WASHINGTON, DISTRICT OF COLUMBIA, 20004. BNP PARIBAS ASSET MANAGEMENT UK Ltd. 5 ALDERMANBURY SQUARE LONDON, EX2V 7BP United Kingdom N IA 3,638,215 5.1% 3,638,215 0 3,638,215 0 Y N Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. BNP Paribas Asset Management UK Ltd Timothy Trotter 04/11/2025