On September 21, 2026, Dominion Energy South Carolina, Inc. filed a Form 8-K announcing the execution of an underwriting agreement. The company entered into this agreement with BNP Paribas Securities Corp. and Scotia Capital (USA) Inc., which are serving as representatives for the underwriters named in the agreement.

The filing details the sale of $300,000,000 in aggregate principal amount of the company’s 2026 Series A 6.15% First Mortgage Bonds due 2056. These bonds are registered under the Securities Act of 1933, specifically under Rule 415, pursuant to a registration statement on Form S-3. That registration statement became effective on February 23, 2024, under File No. 333-277322-01.

The issuance of the bonds is governed by an indenture dated April 1, 1993, between the company and The Bank of New York Mellon Trust Company, N.A. as trustee. The underwriting agreement, the indenture, and legal opinions related to the bonds are included as exhibits to the filing.