Investor Presentaiton

Despite accelerating inflation throughout 1H22, OpEx near flat yoy drives our C:Cl at 50% (<49% in 2Q22) NATIONAL BANK OF GREECE OpEx by category (€ m) Group 1H22 1H21 YOY 2yrA¹ Personnel 207 213 -2.7% -14% G&As 95 92 +3.4% +5% Reflects our strategic IT investment plan Depreciation 83 78 +7.1% na including replacement of our CBS Total 386 383 +0.8% -5% Group Cost to Core Income (%) Cost/ core income % 52.1 50.1 -200bps yoy 48.8 Personnel cost/ core income % 29.0 26.9 26.1 Domestic Branch evolution (#) 527 461 389 366 FY15 FY18 FY19 FY20 -34 branches qoq drop due to conversion into i- bank tellerless 338 337 332 FY21 1Q22 2Q22 Group headcount² evolution (# k) 19.8 7.8 7.1K at Bank level 10.8 10.1 9.4 8.8 8.7 1.6 1.6 1.6 1.4 1.3 SEE & Other G&As/ 12.0 core income % 12.6 12.4 12.1 9.2 8.5 7.8 7.4 7.4 Greece Depreciation/ 12.6 core income % 10.8 10.6 FY15 FY18 FY19 FY20 FY21 1H22 1H21 1H22 2Q22 1.2-year cumulative change | 2. Excludes employees under discontinued operations National Bank of Greece 2Q22 results Financial Results 19 19

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