On June 19, 2019, the Boards of Directors of Pinnacle West Capital Corporation and Arizona Public Service Company appointed Elizabeth A. Blankenship to the position of Vice President, Controller and Chief Accounting Officer of the Company and APS effective immediately. Ms. Blankenship, age 47, has been the General Manager, Accounting Operations of APS since April 2019. She previously held the positions of Director, Accounting Operations of APS from August 2014 to April 2019 and Manager, Accounting of APS from August 2011 to August 2014.