Sierra Metals Inc. announced the departure of Mr. Ed Guimaraes, the Chief Financial Officer of the Company, and the appointment of Mr. José Fernández-Baca as Interim CFO. Mr. Fernandez-Baca has a degree in Economics from the Universidad del Pacifico, Lima-Peru, and an MBA from Northern Illinois University. He also has advanced executive program certifications from Northwestern, INCAE, Cambridge, and the Universidad de Piura, among others.