Exhibit 99.4

ANNUAL MEETING CELESTICA INC. TUESDAY, APRIL 23, 2013 AT 9:00 AM EDT TMX BROADCAST CENTRE, THE EXCHANGE TOWER 130 KING STREET WEST TORONTO, ONTARIO

2 CELESTICA INC. ANNUAL MEETING TUESDAY, APRIL 23, 2013 AT 9:00 AM EDT MARCH 8, 2013 APRIL 19, 2013 R3 o F WITHHOLD o o 01 DAN DIMAGGIO o o 02 WILLIAM A. ETHERINGTON o o 03 LAURETTE KOELLNER o o 04 CRAIG H. MUHLHAUSER o o 05 JOSEPH M. NATALE o o 06 EAMON J. RYAN F WITHHOLD o o 07 GERALD W. SCHWARTZ o o 08 MICHAEL WILSON 01 F o WITHHOLD o 01 APPOINTMENT OF KPMG LLP AS AUDITOR AND AUTHORIZATION OF THE BOARD OF DIRECTORS OF CELESTICA INC. TO FIX THE REMUNERATION OF THE AUDITOR. F o AGAINST o 02 ADVISORY RESOLUTION ON CELESTICA INC.’S APPROACH TO EXECUTIVE COMPENSATION. *NOTE* THIS VOTING INSTRUCTION FORM CONFERS DISCRETIONARY AUTHORITY TO VOTE ON SUCH OTHER BUSINESS AS MAY PROPERLY COME BEFORE THE MEETING OR ANY ADJOURNMENT THEREOF. *NOTE* THIS VOTING INSTRUCTION FORM SHOULD BE READ IN CONJUNCTION WITH THE ACCOMPANYING MANAGEMENT PROXY CIRCULAR.