Exhibit 99.1 Financial News Release Advanced Energy Reports First Quarter 2024 Results ● Revenue was $327.5 million, below guidance ● GAAP EPS from continuing operations was$0.15, within the guidance range ● Non-GAAP EPS was $0.58, within the guidance range DENVER, Colo., May 1, 2024 - Advanced Energy Industries, Inc. (Nasdaq: AEIS), a global leader in highly engineered, precision power conversion, measurement, and control solutions, today announced financial results for the first quarter ended March 31, 2 ...