Officers Responsible for Disclosing Financial Information to the National Banking Securities Commission, to the Mexican Stock Exchange and to the investing public:

Luis Alejandro Soberón Kuri
Chairman and Chief Executive Officer

Víctor Manuel Murillo Vega
Chief Financial Officer

Mónica Lorenzo Gutiérrez
Legal Director

Persons Responsible for the Investor Relations Function

Antonio Alducin Perez Cuellar
Financial Planning Deputy Director
Phone: +52 55 5201 9088
Mail: investor.relations@cie.com.mx

Person Responsible for the Media Relations and Press function

Francisco Xavier Velázquez Córdova
Deputy Director of Press F1
Phone: +52 55 5201 9089
Mail: fvelazquezc@cie.com.mx