CELESTICA INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No. _)

NOTICE OF MEETING

AND

PROXY STATEMENT

FOR THE ANNUAL AND

SPECIAL MEETING OF

SHAREHOLDERS

TO BE HELD ON

JUNE 17, 2025

MESSAGE FROM THE CHAIR OF THE BOARD

Dear Shareholders,

Celestica delivered exceptional financial results in 2024, reflecting strong execution by our entire team. Our performance translated into significant value creation for our shareholders, with robust stock performance throughout the year and having been named to the TSX30 for our strong performance on the Toronto Stock Exchange. These results underscore our goal of driving sustainable growth, operational excellence and maintaining long-term financial strength. The Board remains deeply engaged in overseeing the company’s strategy, which helps to ensure that we continue to build leading-edge capabilities and deliver innovative solutions. We also strive for strong governance and responsible corporate stewardship that aligns with our long-term sustainability initiatives.

The Board also recognizes the importance of consistent engagement with shareholders, and we continued our shareholder engagement initiative for the fourth consecutive year. We received important feedback about our executive compensation philosophy and pay-for-performance strategy, as well as insights on succession planning and Board composition.

I welcome and encourage you to attend our 2025 Annual and Special Meeting of Shareholders on June 17, 2025 at 9:30 a.m. EDT. As this will be a hybrid meeting, you will have the choice to attend the Meeting in person or virtually. I encourage you to read the attached Proxy Statement and vote your shares in support of the Board’s recommendations on each proposal. Our Annual Report is also available on our website at www.celestica.com/shareholder-documents. All of our financial results, including historical comparisons, are now being reported in accordance with U.S. Generally Accepted Accounting Principles (GAAP), having transitioned from previously being reported under International Financial Reporting Standards (IFRS).

I would like to personally thank Laurette Koellner for her more than 15 years of service on our Board. On behalf of the Board, I’m pleased to welcome Amar Maletira to the Board. He is standing for election by shareholders for the first time at the Meeting.

Thank you to our shareholders for your continued support and investment in Celestica.

Yours sincerely,

Michael M. Wilson

Chair of the Board

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