Sierra Metals Inc. - NaFinance(1) Yauricocha Silver-Copper-Lead-Zinc-Gold Project, Lima, Western Central Peru. Acquired in . Copper Oxide concentrate .. 400 tpd increasing to 650 tpd.copper oxide 400tpd,for the Yauricocha Mine, PeruAug 1, 2018 . magnetite and copper oxides occur in the same contact. .. within the same level, a maximum rate of extraction of 400 tpd was applied per.
copper oxide 400tpd