SELECTIVE INSURANCE GROUP INC

Our unaudited interim consolidated financial statements include amounts for which we have made informed estimates and judgments for transactions not yet completed. Such estimates and judgments affect the reported amounts in the consolidated financial statements. As outlined in our 2023 Annual Report, those estimates and judgments most critical to the preparation of the consolidated financial statements involved the following: (i) reserve for loss and loss expense; (ii) investment valuation and the allowance for credit losses on available-for-sale ("AFS") fixed income securities; and (iii) reinsurance. These estimates and judgments require our use of assumptions about highly uncertain matters, making them subject to change as facts and circumstances develop. If different estimates and judgments had been applied, materially different amounts might have been reported in the financial statements. For additional information regarding our critical accounting policies and estimates, refer to pages 39 through 47 of our 2023 Annual Report.