Mr. José Humberto Gutiérrez Olvera Zubizarreta, C.P., serves as the Chief Executive Officer of Condumex. Mr. Zubizarreta served as the Chief Executive Officer of Grupo Carso SAB de CV. He served as the Chairman of the Board of Minera Frisco, S.A.B. de C.V. until April 2014. Mr. Zubizarreta served as the Chairman of Grupo Condumex. He serves as a Director of Minera Frisco, S.A.B. de C.V., Telephones the México, S.A., global Carso Telecom, S.A., Grupo Primex, S.A. the C.V., and Grupo Condumex, S.A. the C.V. He served as a Director of Teléfonos de México SA de CV., Impulsora del Desarrollo y el Empleo en América Latina, S.A.B. de C.V., América Telecom SA de CV., Carso Infraestructura y Construccion SAD de CV, Promotora Inbursa SA de CV., Impulsora del Desarrollo Económico de América Latina SA de CV, Carso Global Telecom SA de CV and of some subsidiaries of Grupo Carso. Mr. Zubizarreta serves as a Director of Grupo Carso, S.A.B. de C.V. Mr. Zubizarreta served as a Director of Grupo Sanborns, S.A.B. de C.V. Mr. Zubizarreta holds a degree in Public Accountancy from the Escuela Bancaria y Comercial.   Mr. José Humberto Gutiérrez Olvera Zubizarreta, C.P., serves as the Chief Executive Officer of Condumex. Mr. Zubizarreta served as the Chief Executive Officer of Grupo Carso SAB de CV. He served as the Chairman of the Board of Minera Frisco, S.A.B. de C.V. until April 2014. Mr. Zubizarreta served as the Chairman of Grupo Condumex. He serves as a Director of Minera Frisco, S.A.B. de C.V., Telephones the México, S.A., global Carso Telecom, S.A., Grupo Primex, S.A. the C.V., and Grupo Condumex, S.A. the C.V. He served as a Director of Teléfonos de México SA de CV., Impulsora del Desarrollo y el Empleo en América Latina, S.A.B. de C.V., América Telecom SA de CV., Carso Infraestructura y Construccion SAD de CV, Promotora Inbursa SA de CV., Impulsora del Desarrollo Económico de América Latina SA de CV, Carso Global Telecom SA de CV and of some subsidiaries of Grupo Carso. Mr. Zubizarreta serves as a Director of Grupo Carso, S.A.B. de C.V. Mr. Zubizarreta served as a Director of Grupo Sanborns, S.A.B. de C.V. Mr. Zubizarreta holds a degree in Public Accountancy from the Escuela Bancaria y Comercial.

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