Age 72 Mount Pleasant, SC Director since 2013 Board Committees: Finance, Nuclear and Operations Oversight (Chair) Professional Highlights President and Chief Executive Officer, Systems Planning and Analysis, Inc. (a global advisory and technical services firm supporting complex national security programs) (2014-2015) Executive Vice President, Chief Operating Officer and Director, Systems Planning and Analysis, Inc. (2013-2014) Admiral U.S. Navy (Retired) Director, Naval Nuclear Propulsion (2004-2012) National Association of Corporate Directors CERT Certificate in Cybersecurity Oversight Other Current Public Company Boards Chairman of the Board, Huntington Ingalls Industries, Inc. (since 2020; director since 2017) Director, Centrus Energy Corporation (since 2021) Key Qualifications and Experience: Mr. Donald brings to the Board deep nuclear expertise and valuable leadership and risk-management experience gained through his distinguished military career in the United States Navy s nuclear program and through his business and senior management experience since retiring from the Navy. He also brings expertise in technology, cybersecurity and corporate governance acquired through his public company board service noted above and private company board service for a private nonprofit applied science and technology development company and for a leading provider of secure supply chain management and cyber solutions.