EXHIBIT 1
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AGREEMENT AS TO JOINT FILING OF SCHEDULE 13G
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Each of the undersigned hereby affirms that it is individually eligible to use
Schedule 13G, and agrees that this Schedule 13G is filed on its behalf.
Dated: February 13, 2013
IMPULSORA de FONDOS BANAMEX, S.A. de C.V.
By: /s/ Xxxxxxxxx Xxxxxxxxx Xxxxxxxx
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Name: Xxxxxxxxx Xxxxxxxxx Xxxxxxxx
Title: Finance Director
ACCIONES y VALORES BANAMEX, S.A. de C.V.
By: /s/ Xxxxxxxxx Xxxxxxxxx Xxxxxxxx
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Name: Xxxxxxxxx Xxxxxxxxx Xxxxxxxx
Title: Finance Director
GRUPO FINANCIERO BANAMEX, S.A. de C.V.
By: /s/ Xxxxxx Xxxxxx Xxxxxx
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Name: Xxxxxx Xxxxxx Xxxxxx
Title: Financial Controller
CITICORP (MEXICO) HOLDINGS LLC
By: /s/ Xxxxxxx X. Xxxx
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Name: Xxxxxxx X. Xxxx
Title: President
COHM OVERSEAS MEXICO HOLDING, S. de X.X. de C.V.
By: /s/ Xxxxxx Xxxxxx Xxxxxx
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Name: Xxxxxx Xxxxxx Xxxxxx
Title: Controller
CITICORP GLOBAL HOLDINGS, INC
By: /s/ Xxxxxxx X. Xxxx
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Name: Xxxxxxx X. Xxxx
Title: President
CITICORP BANKING CORPORATION
By: /s/ Xxxxxxx X. Xxxx
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Name: Xxxxxxx X. Xxxx
Title: Senior Vice President
CITIGROUP INC.
By: /s/ Xxx X. Xxxxxxx
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Name: Xxx X. Xxxxxxx
Title: Assistant Secretary
