Sierra Metals announces filing of NI 43-101 technical report on the Yauricocha Mine in Peru
Toronto, ON – November 13, 2017 – Sierra Metals Inc. (TSX: SMT) (BVL: SMT) (NYSE AMERICAN: SMTS) (“Sierra Metals” or “the Company” – http://www.commodity-tv.net/… ) has filed a technical report prepared in accordance with National Instrument 43-101 (“NI 43-101”) on Mehr