Building a Leading P&C Insurer

4) Value Creation Leads to Upper Teens NOIPS Accretion And drives improvement in RSA's current mid-90's performance Canada -75% UK & International ~20% Specialty Lines ~5% ● • Leverage RSA products and distribution to enhance our broker and direct. channel offers Expense synergies and claims internalization ● ● • Share Intact's data, analytics, risk selection and performance improvement. models on the UK&I personal and commercial lines portfolio ● Transition the portfolio to the Intact platform with benefits from Al based pricing and segmentation as well as optimized supply chain management ● ● Improvements from capital, reinsurance and tax optimization, as well as global head office and de-listing savings Optimize the combined specialty lines product offerings and expertise across North America and internationally Deploy our proven specialty lines governance and performance improvement methodology across the portfolio [intact] ¹Annual run-rate, pre-tax expected within 36 months. Synergies comprise savings in general expenses, loss adjustment expenses and other non-underwriting operating items. Over $250M¹ of expense synergies expected to be generated, before risk selection improvements Majority of the value creation is expected to be generated from combining our operations in Canada where our integration track record is proven 7

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