CenterPoint Energy Inc., through its wholly-owned subsidiary Southern Indiana Gas and Electric Company (SIGECO), has entered into a significant financing agreement with institutional investors in the private placement market. Under the Bond Purchase Agreement signed on July 1, 2025, SIGECO will issue First Mortgage Bonds totaling $350 million. This includes $100 million of 5.09% Series 2025B Tranche A Bonds due 2031 and $105 million of 5.52% Series 2025B Tranche B Bonds due 2035, both issued on July 1, 2025. Additionally, $45 million of 5.77% Series 2025C Tranche A Bonds due 2040 and $100 million of 6.18% Series 2025C Tranche B Bonds due 2055 are slated for issuance on October 1, 2025. These bonds will be secured under the Amended and Restated Mortgage Indenture, supplemented by a Fifth and Sixth Supplemental Indenture, ensuring that they are ratably secured alongside SIGECO's existing and future first mortgage bonds. The agreement includes customary representations and warranties, with Deutsche Bank Trust Company Americas serving as Trustee.