Bank Millennium S.A.

December 13, 2023.

Current Report No. 38/2023.

Subject: Addendum to current report no 37/2023With reference tocurrent report number 37/2023 dated December 12, 2023, in fulfillment ofthe obligation referred to in §8 [2] of the Regulation of the Ministerof Finance dated March 29, 2018 on current and periodic informationprovided by issuers of securities and conditions for recognizing asequivalent information required by the laws of a non-member state, theManagement Board of Bank Millennium SA. is sending a letter fromDeloitte Audyt sp. z o.o. sp. k., addressed to the Polish FinancialSupervision Authority, containing an explanation of the reasons for thetermination of the agreement for the provision of Deloitte Audyt sp. zo.o. sp. k., audit of financial statements of the Bank and the Bank'sCapital Group for 2021-2023.

Legal: §8 [2] of the Ordinance of the Minister of Finance dated March29, 2018 on current and periodic information provided by issuers ofsecurities and conditions for recognizing as equivalent informationrequired by the laws of a non-member state [Journal of Laws 2018, item757].