Dai Xiaochang

Company	Stock Code	From	To	Position(s)	Release Date / Document Links	Reason for Change
Sirnaomics-B	02257	25-Jan-21	21-Oct-24	ED	22-Oct-24	Dr. Dai wishes to devote more time to his other commitments.
Sirnaomics-B	02257	25-Jan-21	17-May-24	Chief Strategy Officer	17-May-24	Due to his personal reasons
Sirnaomics-B	02257	25-Jan-21	19-Jul-22	Non-Executive Director	19-Jul-22	Dai has been re-designated from a non-executive Director to an executive Director