Resignation of a member of the mBank Supervisory Board from hisfunction.

The Management Board of mBank S.A. (Bank) informs that on October 20,2023, Dr Marcus Chromik handed over to Ms. Professor AgnieszkaSłomka-Gołębiowska, Chairwoman of the Bank's Supervisory Board,resignation from the function of a member of the Bank's SupervisoryBoard as of December 31, 2023.