Trevali Mining Corporation (Trevali or the Company) (TSX:TV)(OTCQX:TREVF)(LMA:TV)(FRANKFURT:4TI) reports record consolidated third quarter (Q3) 2017 preliminary production results of 58.4-million payable lbs. of zinc, 12.5-million payable lbs. of lead and 433,442 payable ounces of silver, including September 2017 monthly production from the Rosh Pinah mine in Namibia and Perkoa mine in Burkina Faso that were both acquired from Glencore PLC on August 31, 2017 (Table 1 and see news release TV-NR-17-19).

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(1) Q3-2017 and YTD-2017 preliminary production figures include September 2017 production figures from the Perkoa and Rosh Pinah mines following the closure of the African zinc asset acquisition from Glencore PLC on August 31, 2017.

Operational Highlights

  • Record overall quarterly zinc, lead and silver production.
  • At Santander, mine and mill output increased by 23% and 7% respectively from Q2. Zn head-grades increased 12% and payable metal units have increased 21% for Zn, 29% for Pb and 7% for Ag versus prior quarter.
  • Record mill throughput and mine output at Perkoa.
  • Material improvements at Caribou record production during transition period to owner-operated mining activities. September zinc recoveries, metal production and concentrate content set a new monthly record of 81.5% recovery.
  • Rosh Pinah mine, mill and zinc recoveries all increased on a quarter-to-quarter basis by 12%, 7% and 2% respectively. The mill re-grind project remains on track and budget for commissioning by year-end.

Following our August 31st acquisition of the Rosh Pinah and Perkoa zinc mines from strategic partner Glencore, we are excited to report record quarterly metal production for Trevali in Q3, stated Dr. Mark Cruise, Trevali’s President and CEO. Integration of the new African mines has progressed well and we are pleased with performance achieved to date. We are also encouraged with the production growth potential identified at these mines and are moving forward on optimization initiatives to further improve metal output.

Santander Zinc Mine, Peru

Preliminary Q3 Santander production was 14.6 million payable pounds of zinc, 3.9 million payable pounds of lead and 194,214 payable ounces of silver (see Table 2). Recoveries averaged 88% for zinc, 82% for lead and 67% for silver.

Santander mill throughput for Q3-2017 was a new record of 219,105 tonnes, approximately 20% above the nameplate design of 2,000-tonnes-per-day (730,000 tonnes per year). Mine production the quarter was 183,200 tonnes.

Santander metal production, mine output, mill throughput and recoveries all increased significantly in Q3 over the preceding quarter. Tonnes mined over Q3 increased 23% from the preceding quarter, tonnes milled was up 7% over Q2, average zinc head grades increased 12%, and payable Zn, Pb and Ag production were up 21%, 29% and 7% respectively over the prior quarter.

The Company is finalizing the upgrade of its pumping infrastructure to facilitate long-range planning as the mining transitions deeper in the Magistral zones with the system on track for commissioning prior to year-end 2017. It is anticipated to result in reduced power requirements and improve overall mine efficiency upon completion.

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