36 – Expenses Group auditor Index353637383940 Expenses for services rendered by the Group auditor (including the international network within the meaning of section 271b UGB) comprised the following: (XLSX:) Download Expenses for services rendered by the Group auditor (including the international network) In EUR mn 2023 2022 Group auditor thereofKPMG Austria GmbH Wirtschaftsprüfungs- und Steuerberatungsgesellschaft Group auditor1 thereofErnst & Young Wirtschaftsprüfungsgesellschaft m.b.H Audit of Group accounts and year-end audit 5.40 2.38 3.47 1.58 Other assurance services 0.84 0.74 0.60 0.48 Tax advisory services 2.50 — 0.19 — Other services 0.74 0.00 0.40 0.01 Total 9.48 3.12 4.65 2.07 1 Borealis Group was audited by PwC Wirtschaftsprüfung GmbH, therefore not included in the expenses 2022. 35 – Average number of employees37 – Related parties