On January 8, 2020, the Human Resources Committee of the Board of Directors of Pinnacle West Capital Corporation (Pinnacle West or the Company), acting pursuant to a delegation of authority from the Boards of Directors of both Pinnacle West and Arizona Public Service Company (APS), appointed Theodore N. Geisler to the position of Senior Vice President and Chief Financial Officer of the company and APS, effective immediately. James R. Hatfield was promoted to the position of Executive Vice President and Chief Administrative Officer of APS, also effective immediately. On January 8, 2020, the Committee, acting pursuant to a delegation of authority from the APS Board, appointed Daniel T. Froetscher as President and Chief Operating Officer of APS, effective immediately.

Jeffrey B. Guldner continues as Chairman of the Board and Chief Executive Officer of APS and Chairman of the Board, President and Chief Executive Officer of Pinnacle West.