RenaissanceRe 2025 Sustainability Report A Message From Our CEO About This Report Sustainability Strategy Our Portfolio Our Partnerships Our People Our Operations Our Communities Our Governance Metrics and Performance Looking Ahead Appendix 51 Carbon Footprint Methodology Scope 1 Emissions are calculated using internal records of fixed asset usage and gas service provider invoices across all company offices. These emissions include direct outputs from corporate vessels, backup generators and on-site gas consumption. Scope 2 We used electricity provider invoices for all offices and data centers where available. Estimation methodologies are utilized in remaining instances. These emissions represent indirect GHG outputs from the consumption of purchased electricity, steam, heating and cooling. Scope 3 Business travel-related emissions are calculated utilizing activity data from travel records where available. Spend- based calculations are performed in instances where activity data was not available. Waste-related emissions are estimated using the WRAP Green Office guide, applying a benchmark of 200 kg of waste per employee per year, when activity data was not available. Employee commuting emissions are calculated on the assumption that all employees are commuting to their local offices four days per week. The calculation methodology utilized city- or country- specific official surveys to assume mode and length of transport. Employee commuting emissions also include remote work emissions, which were calculated based on an average of one work-from-home day per employee per week, adjusted for holidays. Being headquartered in Bermuda, some global corporate air travel costs were attributed to the head office. The figures provided in this report represent best estimates as of December 31, 2025. These estimates are based on the availability of data and existing methodologies. In certain instances where it is not possible or practicable for RenaissanceRe to do so, RenaissanceRe may not include items specified in the GHG Protocol. As at June 2025, RenaissanceRe has rebaselined 2019 emissions figures as more accurate and complete data became available and RenaissanceRe recategorized scopes of emissions and refined the methodologies used for the calculation of the emissions. However, in certain cases, it is either not feasible or practical for us to include all items outlined in the GHG Protocol in our calculations. In those cases, we will omit these items from our carbon inventory or rely on assumptions to estimate emissions. As the best practices, standards and frameworks in this area continue to evolve, and more accurate and complete data becomes available, these estimates may also evolve and/or change. RenaissanceRe continues to refine the internal data collection processes to attempt to more accurately estimate our emissions, and as such, estimates across years may not be directly comparable as the internal data collection process and collation procedures update. Independent Assurance Selected GHG emissions metrics have been subject to independent external assurance, with limited assurance provided by an independent third party. The assurance provider, Crowe U.K. LLP, expressed an unqualified limited assurance conclusion with respect to the selected metrics. RenaissanceRe uses the World Resources Institute/World Business Council for Sustainable Development GHG Protocol, Revised Edition, to calculate our Scope 1, Scope 2 and Scope 3 emissions. This framework aligns with internationally recognized GHG accounting standards and incorporates the most up-to-date emission factors available at the time of calculation, taking the location of the offices and data centers into consideration. Appendix