品纳克尔西部资本 PNW

Mr. Geisler, April 2025 - Present: Chairman of the Board, President and Chief Executive Officer of Pinnacle West and APS.; May 2022 - April 2025: President, APS; 2020-2022: Senior Vice President, Chief Financial Officer, Pinnacle West and APS; Mr. Geisler currently sits on the Board of Directors for Arizona Chamber of Commerce and Greater Phoenix Economic Council.

Ms. Shirley A. Baum, Senior Vice President, Corporate Secretary and General Counsel of Pinnacle West and APS 2026-Present, Senior Vice President and General Counsel of Pinnacle West and APS 2025-2026, Vice President of Law of Pinnacle West and APS 2022-2025, Deputy General Counsel of Pinnacle West 2019-2022. Shirley is responsible for overseeing all facets of the Company's legal affairs, ethics, and corporate secretary function, including corporate/commercial, nuclear, regulatory, litigation, environmental, and labor and employment areas. Shirley previously served as Vice President of Law and other positions within the Company's law department since 2007. She is also a Certified Public Accountant. She serves on the Board of Directors for the Sandra Day O'Connor Institute.

Paula J. Sims, Since 2022 and 2012, respectively: Retired Professor of Practice, University of North Carolina Kenan-Flagler Business School, and Former Senior Vice President of Corporate Development and Improvement and Chief Integration Officer Duke/Progress Merger; 2012 - 2022: Professor of Practice and Executive Coach, University of North Carolina Kenan-Flagler Business School; 2011 - 2012: Senior Vice President of Corporate Development and Improvement and Chief Integration Officer for Duke/Progress Merger; 2010 - 2012: Senior Vice President of Corporate Development and Improvement, Progress Energy, Inc.; 2007- 2010: Senior Vice President Power Operations, Progress Energy.

James E. Trevathan, Jr., 2012 - 2018: Executive Vice President and COO, Waste Management, Inc. (Waste Management) (waste disposal and recycling solutions); 2011 - 2012: Executive Vice President of Growth, Innovation and Field Support, Waste Management; 2007 - 2011: Senior Vice President - Southern Group, Waste Management.

Ms. Glynis A. Bryan, 2025: Executive Vice President and Advisor, Insight Enterprises, Inc. (computer hardware, software, and technology solutions); 2007-2024: CFO, Insight Enterprises, Inc.; Ms. Bryan is a director of Wesco International, Inc. (Wesco), Ameriprise Financial, Inc. (Ameriprise) and Benchmark Electronics, Inc. (Benchmark); Within the past five years, Ms. Bryan was a director of Pentair plc.

William H. Spence, 2020 - 2021: Chairman of the Board, PPL Corporation (investor owned utility); 2012 - 2020: Chairman of the Board, President and Chief Executive Officer, PPL Corporation; Mr. Spence is also a director of Williams Companies, Inc.

Mr. Ronald Butler, 2008-2024: Arizona Managing Partner, Ernst & Young LLP (accounting firm); 2004-2008: Partner of Ernst & Young LLP; Mr. Butler is a director of i-80 Gold Corp.; Mr. Butler currently serves as the Chairman of the Board of Directors of Education Forward Arizona.

Mr. Gonzalo de la Melena, Jr, Since 2012: Founder and CEO, Emerging Airport Ventures, LLC (airport concessions company); Mr. de la Melena served as the CEO of the Arizona Hispanic Chamber of Commerce from 2010 to 2020; Mr. de la Melena currently serves on the Board of Directors of Gainey Business Bank, Greater Phoenix Leadership and Education Forward Arizona.

Ms. Susan T. Flanagan, 2024 - Present: Operating Partner, Apollo Global Management (asset management and investments); 2005 - 2023: President and CEO, GE Energy Financial Services; 2003 - 2005: Senior Manager, Ernst Young LLP. Ms. Flanagan is currently an operating partner with Apollo Global Management.

Ms. Carol S. Eicher, 2018 - Present: Executive Advisor, Wind Point Partners, Inc. (private equity firm); 2014 - 2017: CEO, Innocor, Inc.; 2009 - 2013: Business President, Dow Chemical Company; Ms. Eicher is currently on the Board of Directors of Arq, Inc. and Tennant Company.; Within the past five years, Ms. Eicher served as a director of Arconic, Inc.

Kristine L. Svinicki, 2021 - Present: Adjunct Professor, Nuclear Engineering and Radiological Sciences, University of Michigan; 2008 - 2021: Chairman, U.S. Nuclear Regulatory Commission (2017 - 2021) and previously Commissioner (2008 - 2017); 2001 - 2008: Professional Staff Member, U.S. Senate; 1990 - 2001: Project Manager and Nuclear Engineer, U.S. Department of Energy; Ms. Svinicki is also a director of Southern Company and TerraPower. Ms. Svinicki is certified in cybersecurity oversight from Carnegie Mellon University Software Engineering Institute.

Mr. Christopher R. Bauer, Vice President and Treasurer of Pinnacle West and APS 2024-Present, Director, Corporate Finance and Assistant Treasurer of Duke Energy Corporation 2021-2024, Director, Credit and Capital Markets of Duke Energy Corporation 2017-2021.

Mr. Jose Luis Esparza, Jr, Senior Vice President, Public Policy of APS, 2022-Present; Vice President, Regulatory of APS,2022; Officer and Senior Vice President, Customer Engagement and Information Technology of Southwest Gas, 2019-2021; Vice President, Customer Engagement of Southwest Gas, 2012-2019.

Ms. Elizabeth A. Blankenship, Vice President, Controller and Chief Accounting Officer of Pinnacle West and APS, 2019-Present; General Manager, Accounting Operations of APS, 2019-2019; Director, Accounting Operations of APS, 2014-2019.