Disclosure URL or direct response GRI SASB Processes to remediate negative impacts Ethics and compliance, page 51 2-25 The Greater Good Mechanisms for seeking advice and raising Ethics and compliance, page 51 2-26 concerns The Greater Good Compliance with laws and regulations Ethics and compliance, page 51 2-27 2022 10-K, page 8–9 Membership associations Awards and partnerships, page 7 2-28 Material Topics Process to determine material topics About this report, page 71 3-1 List of material topics No changes in reporting 3-2 Economic Performance Anti-Corruption Communication and training about anti-corruption Ethics and compliance, page 51 205-2 policies and procedures The Greater Good Professional Integrity Description of approach to ensuring Ethics and compliance, page 51 SV-PS-510a.1 professional integrity The Greater Good Total amount of monetary losses as a result of legal Except as a matter of public record, Marsh McLennan does not disclose this SV-PS-510a.2 proceedings associated with professional integrity information. Environmental Emissions Direct (Scope 1) GHG emissions Our 2022 emissions inventory, page 13 305-1 Energy indirect (Scope 2) GHG emissions Our 2022 emissions inventory, page 13 305-2 Other indirect (Scope 3) GHG emissions Our 2022 emissions inventory, page 13 305-3 GHG emissions intensity Our 2022 emissions inventory, page 13 305-4 Reduction of GHG emissions Our 2022 emissions inventory, page 13 305-5 Overview Environment Social Governance Appendix 2022 ESG REPORT 66