Exhibit 99.1 FOR IMMEDIATE RELEASE July 24, 2024 (All amounts in U.S. dollars. Per share information based on diluted shares outstanding unless otherwise noted.) CELESTICA ANNOUNCES SECOND QUARTER 2024 FINANCIAL RESULTS Q2 2024 revenue and non-IFRS adjusted EPS* exceed the high end of guidance ranges; 2024 full-year outlook raised TORONTO, Canada - Celestica Inc. (TSX: CLS) (NYSE: CLS), a leader in design, manufacturing, hardware platform and supply chain solutions for the world's most innovative companies, ...