Retail Banking Performance Update

Poland (EUR mn) Change Change Q1'21 Q2'21 Q3'21 Q4'21 Q1'22 Q2'22 Q3'22 Q4'22 Q4'22/Q3'22 2021 2022 2022/2021 Net interest income 233 242 244 302 407 486 530 552 +4.0% 1,020 1,976 +93.7% Net fee income 127 126 133 132 138 130 135 125 -7.4% 518 528 +2.0% Gains (losses) on financial transactions and other (10) 41 21 26 (35) (37) 24 18 -26.4% 79 (30) Total revenue 349 410 398 460 511 579 690 695 +0.7% 1,617 2,474 +53.0% Operating expenses (158) (163) (162) (179) (166) (173) (171) (182) +6.8% (663) (692) +4.5% Net operating income 191 247 236 281 345 406 519 512 -1.3% 955 1,782 +86.7% Net loan-loss provisions (68) (45) (47) (39) (64) (138) (88) (150) +71.3% (200) (440) +120.1% Other gains (losses) and provisions (72) (126) (56) (150) (46) (60) (363) (85) -76.6% (404) (553) +37.0% Underlying profit before tax 51 76 133 91 236 208 68 277 +305.4% 351 789 +125.0% Underlying consolidated profit 20 44 97 48 167 142 33 200 210 542 +158.8% Underlying attributable profit 15 29 29 65 31 112 95 22 134 140 364 +159.2% Santander 31

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