Notice of Santee Cooper Rate Adjustment, Review of Proposed Rates and Public Comment Period Santee Cooper is proposing adjustments to retail customer rates and has opened a public review and comment period. That period begins May 1, 2026. Santee Cooper residential, commercial, industrial, municipal street lighting and certain wholesale customers have the right to review the proposed rate schedules; appear and speak in person concerning the proposed rates at public meetings or the specified meetings of the Board of Directors; and submit written comments. The proposed rates, rate study report, management presentation and other materials are available for review at www.santeecooper.com/rates/rate-study/ or in person at Santee Cooper's headquarters, 1 Riverwood Drive, Moncks Corner, and at Santee Cooper's Horry-Georgetown (HG) Division Office, 305A Gardner Lacy Road, Myrtle Beach. The deadline for submission of written comments is July 30, 2026, and the last meeting for oral comments is August 31, 2026. Any new rates approved by the Board of Directors through this process would become effective for services charged on or after February 1, 2027, and February 1, 2028. Written comments can be dropped off at either of the addresses above; submitted electronically at www.santeecooper.com/rates/rate-study/; emailed to rates@santeecooper.com; or mailed to Santee Cooper, Rates Public Comments (M301), P.O. Box 2946101, Moncks Corner, SC 29461 by July 30, 2026. Public comment meetings will be held at the locations and times below. Except for the August 31 meeting, public comments during these meetings are limited to Santee Cooper customers. Comments from all meetings will be transcribed and provided to the Board for its consideration. July 27 | 6 p.m. Santee Cooper Headquarters Auditorium 1 Riverwood Dr., Moncks Corner, SC 29461 July 28 | 10:30 a.m. Waccamaw Neck Library Auditorium 41 St. Paul's Pl., Pawleys Island, SC 29585 July 28 | 6 p.m. Santee Cooper HG Office Auditorium 305A Gardner Lacy Rd. Myrtle Beach, SC 29579 Aug. 31 | 2 p.m. Santee Cooper HG Office Auditorium 305A Gardner Lacy Rd. Myrtle Beach, SC 29579 This will be a meeting of the Santee Cooper Board and is the final opportunity for oral comments. Customers and other interested parties can make comments during this meeting. _______________________________________________________ Additional Board Meetings That Are Part of the 2026 Rate Process No public comments will be received during these two meetings. Sept. 29 | 8 a.m. Dan Ray Conference Center Wampee 2213 Pinopolis Rd. Pinopolis, SC 29469 Management will present final recommended rates to the Board for consideration. Oct. 30 | 8 a.m. Santee Cooper HG Office Auditorium 305A Gardner Lacy Rd. Myrtle Beach, SC 29579 The Board will be asked to vote on new rates. _______________________________________________________ Make Up Public Comment Meeting Dates (IF NEEDED) Aug. 11 | 6 p.m. Santee Cooper Headquarters Auditorium 1 Riverwood Dr. Moncks Corner, SC 29461 Aug. 13 | 6 p.m. Santee Cooper HG Office Auditorium 305A Gardner Lacy Rd. Myrtle Beach, SC 29579 IPL0334342 May 2-3 2026