Joint Filing Agreement
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Exhibit 1
The undersigned agree that the foregoing statement on Schedule 13D/A, dated June 25, 2010, is
being filed with the Securities and Exchange Commission on behalf of each of the undersigned
pursuant to Rule 13d-1(k).
Dated: June 25, 2010
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| PROMOTORA SERVIA, S.A. de C.V. |
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| Its: | Chairman of the Board and Chief Executive Officer | |||
| SERVICIOS DIRECTIVOS SERVIA, S.A de C.V. |
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| Its: | Chairman of the Board and Chief Executive Officer | |||
| VEX ASESORES CORPORATIVOS, S.A.P.I. DE C.V. |
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| Its: | Chairman of the Board and Chief Executive Officer | |||