General SENS Submitter Company - Index Change Advice 20251230 ASP Isotopes Inc Acquisition of Renergen Ltd

Index Change Advice – 20251230 ASP Isotopes Inc Acquisition of Renergen Ltd

                                                                                                                        CORPORATE




   ASP Isotopes Inc (South Africa): Acquisition of Renergen Ltd (South
                                 Africa)
                      FTSE/JSE Africa Index Series

                                               22 December 2025
 Subject to the completion of Scheme of Arrangement in relation to the acquisition of Renergen Ltd (South Africa,
 constituent) by ASP Isotopes Inc (South Africa, constituent) and following notification from the Stock Exchange,
 please see details of affected indexes and effective dates below:


                                                                                                   Effective From
                  Index                                        Change
                                                                                                   Start of Trading
FTSE/JSE All Share Index (J203)             ASP Isotopes Inc (South Africa,                   30 December 2025
                                            US00218A1051, BVY7616) will remain in the
                                            index with an increased shares in issue total
                                            from 110,574,009 to 124,832,168* and a
                                            decreased investability weighting from
                                            20.7615% to 18.390149947996%*.

                                            Renergen Ltd (South Africa, ZAE000202610,         30 December 2025
FTSE/JSE AltX Index (J232)
                                            BZ0CDP6) will be deleted from the index.

FTSE/JSE AltX 15 Index (J233)               Renergen Ltd will be deleted from the index.      30 December 2025


  * The number of index shares will remain unchanged, as the investability weighting decrease offsets the shares in
 issue increase which is based on the acquisition terms of 0.09196 ASP Isotopes Inc for each Renergen Ltd share
 held. The index shares in ASP Isotopes Inc will not be increased as part of the corporate event as it is a newly eligible
 foreign inward listing with an adjusted investability weight, as per Ground Rule 4.3.7.




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Date: 22-12-2025 05:05:00
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