Investor Presentation - Q2 2021

Results of mBank Group: Customer deposits Growth of deposit base fueled by constant inflows to current accounts in both segments Development of customer deposits PLN M Deposits from corporate customers PLN M 0.0% +12.1% +12.6% +1.1% +2.6% +2.9% +2.4% 152,097 156,584 789 49,078 715 48,239 357 47,862 49,095 0.5% 0.5% 139,623 768 141,119 576 652 39,236 93 151 219 137,699 486 48,362 47,882 47,711 48,876 49,095 31% 39,143 47,862 35% 49,078 48,239 39,236 06/20 09/20 12/20 03/21 06/21 Core corporate deposits Repo transactions 64% 89,777 92,303 97,976 103,583 106,700 68% Deposits from retail customers PLN M +18.8% +3.0% 89,777 92,303 97,976 12,925 10,782 10,158 103,583 9,358 106,700 8,827 06/20 09/20 12/20 03/21 06/21 76,852 81,521 87,818 94,224 97,873 Individual clients Corporate clients Public sector +X.X% Excluding repo transactions 06/20 09/20 12/20 Current and saving accounts 03/21 06/21 Term deposits Investor Presentation - Q2 2021 19

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