He was appointed Auditor General on July 18, 2019. He has 33 years of experience with Grupo Mexico. Mr. Vaca Castro has been Director of Internal Audit of Minera Mexico, a subsidiary of SCC, since 2018. Prior to that, he was Director of Internal Audit for Grupo Mexico’s infrastructure division, as well as Deputy Director of Internal Control for Grupo Mexico’s mining division. He was also Controller of Minera Mexico Internacional and prior to that, he held several positions in different Grupo Mexico companies. Mr. Vaca holds a Bachelor’s degree in Accounting from the National Autonomous University of Mexico (UNAM). He holds an MBA from the Universidad del Valle de Mexico, with a specialization in finance, having received an honorable mention award upon receiving his diplomas in finance and taxation. Mr. Vaca is also an active member of the Colegio de Contadores Públicos de México and the Instituto de Auditores Internos de México. He is also a member of the Internal Audit Technical Committee of the Mexican Association of Public Accountants. He was a professor at the School of Accounting and Administration of the National Autonomous University of Mexico (UNAM).