2022 ESG Highlights ENVIRONMENTAL Internal External • Committed to achieving net-zero carbon • Advanced conversations at COP 27 around the orderly investment emissions across our global business transition, the insurance sector’s role in climate adaptation, and the operations by 2050, with a 50% emissions link between climate and nature. reduction by 2030. • Oliver Wyman launched its 3D carbon accounting service that allows ® • Maintained certification as a CarbonNeutral companies to quantify and better understand their emissions. company for all of our global operations. • Mercer developed a climate-investing benchmarking tool and • Eliminated single-use plastics in 100% of framework that provides practical climate investing protocols. office pantries. SOCIAL Internal External • Earned an 80% favorability score on our • Mercer published its Stepping Up for Equity study to help employers annual all-colleague engagement survey. craft a clear, comprehensive, and impactful roadmap for closing the career, health and wealth gaps in the US workforce for Black employees. • 95% of our colleagues completed at least one training or learning program across our • Lippincott worked pro bono with NYC Pride to evolve its brand and learning platforms. bring to life a new brand identity. • Over 4,000 colleagues raised $1.4 million to • Marsh McLennan published Life support: A people prescription for support the people of Ukraine through three resilient health systems, which examines the massive workforce humanitarian organizations. challenge faced by acute-, primary-, and secondary-care providers. GOVERNANCE Internal External • Reached over 30% women representation • Marsh developed the ESG Risk Rating (ERR) tool to help clients on our Board of Directors. self-assess the maturity of ESG within their organizations. • Introduced a new Financial Crime training to • President & CEO, John Doyle, met with the Office of the National safeguard Marsh McLennan against illegal Cyber Director to discuss the insurance industry’s important role in activity and the risks posed by sanctions, enhancing global cybersecurity. corruption, and money laundering. • Our Government Relations team engaged the US Treasury and the US • Strengthened our cybersecurity capabilities Federal Insurance Office regarding the (re)insurance market in Ukraine and developed a multi-year plan to further and how to support Ukrainian grain exports and global food security. mature our program. Overview Environment Social Governance Appendix 2022 ESG REPORT 9