Sierra Metals
Ricardo Robles Coss currently serves as Ingeniero eléctrico jefe at Sierra Metals Inc. since February 2021. Prior to this role, Ricardo worked as Electrical and Instrumentation Supervisor at Argonaut Gold Inc. from August 2018 to January 2021, and as Ingeniero eléctrico at Cobres del Mayo from May 2015 to August 2018. Earlier experience includes a position as Especialista en instrumentación at Pan American Silver Corp. from November 2014 to May 2015. Ricardo holds a degree in Ingeniería electrónica, robótica y mecatrónica from Itesca, completed in December 2014.
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Sierra Metals
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Sierra Metals Inc, formerly Dia Bras Exploration Inc, is a Canada-based mining company. The Company is focused on the production, exploration and development of precious and base metals in Peru and Mexico. The Company owns interest in the polymetallic Yauricocha Mine in Peru and in the Bolivar and Cusi Mines in Mexico. In addition to its producing mines, the Company also owns various exploration projects in Mexico and Peru. The Company operates under the following segments: Peru- Yauricocha Mine and Mexico - Bolivar and Cusi Mines. The Yauricocha Mine is a Silver-Lead-Zinc-Copper-Gold property comprised of more than 17, 000 hectares. The Bolivar Mine is a Copper-Silver-Gold property comprised of approximately 15, 000 hectares. The Cusi Mine is a Silver-Lead-Zinc-Gold property comprised of more than 11, 000 hectares.