On March 7, 2024, Duke Energy Corporation announced that it has received a shareholder proposal from National Center for Public Policy Research requesting Board seek an audited report assessing how applying the findings of the Energy Policy Research Foundation and similar studies would affect the assumptions, costs, estimates, and valuations underlying its financial statements, including those related to long-term commodity and carbon prices, remaining asset lives, future asset retirement obligations, capital expenditures and impairments. The Board should obtain and ensure publication of the report by February 2025, at reasonable cost and omitting proprietary information. In addition, the board has recommended shareholders to vote against this proposal at the 2024 Annual Meeting to be held on May 9, 2024.