Compania de Minas Buenaventura S.A.A. announced that Mr. Juan Carlos Ortiz has joined Buenaventura as the Company's new Vice President of Operations, replacing Mr. Gonzalo Eyzaguirre who has resigned effective April 30, 2018 due to personal reasons. Mr. Ortiz's appointment was confirmed at the Company's Board meeting on April 23, 2018, he will assume his new role effective May 1, 2018. Mr. Ortiz has more than 25 years of experience in the mining industry. Prior to assuming his new role at Buenaventura, Mr. Ortiz was the Technical Services Manager at Volcan Compania Minera, where he was responsible for the departments of Engineering, Projects, Planning and Environmental Matters as well as for Volcan's Alpamarca and Cerro de Pasco operations. Prior to this post, he was Chief Operations Officer at Compania Minera Milpo (now part of the Nexa Resources Group), where he was responsible for the Cerro Lindo, Atacocha and El Porvenir operations.