LEGAL NOTICE Notice is hereby given that on or about February 27, 2026, Southern Indiana Gas and Electric Company d/b/a CenterPoint Energy Indiana South ("CEI South") will file a request with the Indiana Utility Regulatory Commission for approval to update its Rate CSP – Cogeneration and Small Power Production, to establish prices for the purchase of energy and capacity from owners of a qualifying facility, as defined by the Commission. The capacity component of Rate CSP will also impact the capacity credits to be paid to customers under Rider IC (Interruptible Contract Rider), Rider IO (Interruptible Option Rider), and Rider IP-2 (Interruptible Power Service Rider), as applicable. CEI South anticipates approval of the filing in April 2026, but no sooner than 30 days after the Commission's receipt of the Rate CSP filing. Objections to the filing should be made in writing addressed to: Dana Kosco Secretary of the Commission Indiana Utility Regulatory Commission PNC Center 101 W. Washington Street, Suite 1500 East Indianapolis, Indiana 46204 Abby Gray Indiana Utility Consumer Counselor Indiana Office of Utility Consumer Counselor PNC Center 115 W. Washington St., Suite 1500 South Indianapolis, Indiana 46204 Matthew A. Rice Director, Regulatory and Rates CEI South February 22 2026 LSBN0462455