Exhibit 4.5

AMENDING AGREEMENT TO  EXECUTIVE EMPLOYMENT AGREEMENT

Made as of the 9th day of February, 2005.

|BETWEEN: |  |                                                                                                                                               |  |                    
|-------- |  | --------------------------------------------------------------------------------------------------------------------------------------------- |  | -------------------
|         |  | CELESTICA INC., a corporation incorporated under the laws of the Province of Ontario (hereinafter called the "Corporation"),                  |  |                    
|         |  |                                                                                                                                               |  | OF THE FIRST PART, 
|         |  | - and -                                                                                                                                       |  |                    
|         |  | CELESTICA INTERNATIONAL INC.,a corporation incorporated under the laws of the Province of Ontario, (hereinafter included as the Corporation), |  |                    
|         |  |                                                                                                                                               |  | OF THE SECOND PART,
|         |  | - and -                                                                                                                                       |  |                    
|         |  | CELESTICA CORPORATION,a Delaware Corporation (hereinafter included as the Corporation)                                                        |  |                    
|         |  |                                                                                                                                               |  | OF THE THIRD PART, 
|         |  | - and -                                                                                                                                       |  |                    
|         |  | STEPHEN W. DELANEYof Saline, Michigan (hereinafter called the "Executive"),                                                                   |  |                    
|         |  |                                                                                                                                               |  | OF THE FOURTH PART.

WHEREAS the parties entered into an Executive Employment Agreement dated July 22, 2004 (the "Executive Employment Agreement").

AND
WHEREAS the parties have agreed to amend the Executive Employment Agreement in accordance with the terms hereof.

NOW
THEREFORE the parties agree as follows:

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IN
WITNESS WHEREOF the parties hereto have executed this Amending Agreement effective as of the date first above written.

|                                                                                                  |  |             |  | CELESTICA INC.                         
|------------------------------------------------------------------------------------------------- |  | ----------- |  | ---------------------------------------
|                                                                                                  |  |             |  | by                                     
|                                                                                                  |  |             |  | CELESTICA INTERNATIONAL INC.           
|                                                                                                  |  |             |  | by                                     
|                                                                                                  |  |             |  | CELESTICA CORPORATION                  
|                                                                                                  |  |             |  | by                                     
|SIGNED, SEALED & DELIVERED
in the presence of:
/s/ELIZABETH DELBIANCOWitness: Elizabeth DelBianco |  | )
)
)
)
)
) |  | /s/STEPHEN W. DELANEYStephen W. Delaney

2

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