On April 7, 2026, Dominion Energy, Inc. (Dominion Energy) entered into an amendment to its existing Sustainability Revolving Credit Agreement, dated as of June 9, 2021 (the Sustainability Credit Agreement), with Sumitomo Mitsui Banking Corporation, as administrative agent, and the other agents and lenders party thereto. The amendment, among other changes, extends the maturity date of the Sustainability Credit Agreement to April 7, 2029 and provides for Dominion Energy to request up to an additional two one-year extensions of the maturity date subject to certain conditions.