4DS Memory Limited announced the resignation of Drs. Wilbert van den Hoek as Executive Chairman of 4DS. Drs.

van den Hoek will cease to be the Executive Chairman effective 13 February 2023. The Board has appointed Mr. David McAuliffe as interim Executive Chairman after 13 February 2023 whilst the Company undertakes a search for a USA based Chairman. The key terms of Mr. McAuliffe's appointment as interim Executive Chairman are unchanged from the key terms of his Executive Director role.