High Grade Zinc-Lead-Silver Mineralization Extended At Santander Mine

VANCOUVER, BC – Trevali Mining Corporation reported results from eight new drill holes that are part of the ongoing 2016 underground resource definition and expansion drill program at its Santander zinc mine in Peru. The aim of the current phase of drilling is to extend and define the newly discovered zone of high-grade massive sulphide replacement mineralization between Magistral Central (MC) and Magistral North (MN), in addition to test the down-dip expression of the recently discovered Oyon zone.

Drill hole MC-182-16 targeted the down-dip expression of the Oyon zone in the 4150-level area, approximately 200-220 meters below the current active mining zone. The drill hole successfully intercepted multiple stacked lenses (or mantos) of massive sulphide in the main MC and Oyon zone (Table 1) and mineralization remains open for expansion.

The reminder of reported drill holes targeted newly discovered mineralization (New zone) between MC and MN in the 4370-level area that is adjacent (approx. 90-meters horizontally) to the current mining front (see Oct. 31/16 News Release for details). All drill holes intersected narrow but exceptionally high-grade Pb-Ag-Zn replacement mineralization and the zone remains open for expansion.