JOINT FILING AGREEMENT
Exhibit 1
The undersigned hereby agree that this amended Statement on Schedule 13D with respect to the
Class A Subordinate Shares of CGI Group Inc. of even date herewith is, and any amendments thereto
signed by each of the undersigned shall be, filed on behalf of each of the undersigned pursuant to
and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934,
as amended.
Dated: August 10, 2006
| BCE Inc. |
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| By: | (signed) | |||
| Name: | Xxxxxxx Xxxxxxxx | |||
| Title: | Chief Legal Officer | |||
| 3787877 Canada Inc. |
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| By: | (signed) | |||
| Name: | Xxxxxxx Xxxxxxxx | |||
| Title: | President and Director | |||
| Xxxx Canada, as administrator of the Xxxx Canada Pension Plan |
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| By: | (signed) | |||
| Name: | Xxxx X. Xxxxxxxxx | |||
| Title: | Chief Financial Officer | |||
| Bimcor Inc. |
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| By: | (signed) | |||
| Name: | Xxxxx Xxxxx | |||
| Title: | Vice-President Finance and Administration | |||
