Notice of Filing and Public Hearing Docket/Case Number: 2025-5-G Docket/Case Name: Annual Review of Purchased Gas Adjustments and Gas Purchasing Policies of Dominion Energy South Carolina, Inc. (For Potential Increase or Decrease in Gas Adjustments) Why is this Notice Important and What is the Purpose of this Case? The Public Service Commission (the "Commission") has scheduled a public hearing regarding a review of the purchased gas adjustments and gas purchasing policies of Dominion Energy South Carolina, Inc. (the "Company"). The Public Service Commission decides what rates a utility can charge. This Notice is for natural gas customers of Dominion Energy South Carolina, Inc. and interested persons. Dominion Energy South Carolina, Inc. can and does purchase gas from outside businesses to serve its residential, industrial, and commercial customers. During the hearing in this case, the Public Service Commission will review the costs that Dominion Energy South Carolina, Inc., paid for purchased gas to serve the Company's customers. The Public Service Commission will evaluate the way Dominion Energy South Carolina, Inc., purchased this gas for its customers, and the Public Service Commission will determine if Dominion Energy South Carolina, Inc.'s method and administration of purchasing gas for its customers is reasonable and prudent as it may affect your bill. The case was filed according to Commission Order No. 87-898 issued on August 14, 1987. This hearing has been scheduled according to S.C. Code Ann. Regs. 103-817 and Commission Order No. 87-898 issued on August 14, 1987. A public hearing has been scheduled in this case to begin on Tuesday, November 4, 2025, at 10:00 a.m., at the Public Service Commission, Hearing Room, 101 Executive Center Drive, Columbia, SC 29210. Intervention deadline: Monday, September 15, 2025 Manner of filing Intervention: Email a Petition to Intervene to contact@psc.sc.gov or mail a Petition to Intervene to 101 Executive Center Drive, Suite 100, Columbia, SC 29210. Please include your email address. You must give a copy of your petition to intervene to all Parties in this case. Manner to file Letters of Protest: File Public Comments or Letters of Protest by emailing contact@psc.sc.gov or mail Public Comments or Letters of Protest to 101 Executive Center Drive, Suite 100, Columbia, SC 29210. For questions regarding this filing, contact the Office of Regulatory Staff at 1-800-922-1531, the South Carolina Department of Consumer Affairs at 1-800-922-1594, Dominion Energy South Carolina, Inc. at 1-800-251-7234, or for public information on this filing, contact the Public Service Commission at 1-803-896-5100. 6/16/25 IPL0253149 Jul 11 2025