Advanced Energy Industries, Inc. announced on November 2, 2023, the Board appointed Mr. Bernard Colpitts, Jr. to the position of Senior Vice President, Chief Accounting Officer, effective as of Mr. Colpitts? first day of employment with the Company on November 8, 2023 (the ?Effective Date?). Mr. Colpitts will serve as the Company?s principal accounting officer.

Mr. Paul Oldham, the Company?s Executive Vice President and Chief Financial Officer, who has served as the Company?s principal financial officer and principal accounting officer since May 2018, notified the Board on November 2, 2023 of his intention to transfer his role as principal accounting officer to the Chief Accounting Officer as of the Effective Date. Mr. Oldham will continue to serve as principal financial officer. Mr. Colpitts was previously Chief Accounting Officer of ON Semiconductor Corporation (?ON Semi?), a supplier of semiconductor-based solutions, from May 2020 to November 2023.

He also served as Chief Accounting Officer and Vice President, Finance of Semiconductor Components Industries, LLC, ON Semi?s wholly-owned subsidiary (?SCI?). From October 2019 to May 2020, Mr. Colpitts served as Senior Vice President and Chief Accounting Officer at GameStop Corp., a video game retailer. Prior to Gamestop, Mr. Colpitts held various positions with ON Semi and SCI, including Vice President, Finance and Treasury of SCI and Chief Accounting Officer of ON Semi and SCI from 2017 to 2019 and Corporate Controller of SCI from 2013 to 2017.

Mr. Colpitts is a certified public accountant.