Trevali Mining Provides Update on Caribou Zinc Mine Commissioning

Trevali Mining Corporation (TSX:TV,OTCMKTS:TREVF) provided a commissioning update for its Caribou zinc mine in New Brunswick. The company reported significant progress has been made since announcing the commencement in late-May.
As quoted in the press release:

As expected a multitude of minor troubleshooting challenges have been identified and corrected during the initial June commissioning period by the experienced mill team. These positive changes have resulted in an approximately 94% mill availability factor by month end at a 1,500-tonne-per-day capacity, or 50% of nameplate design. Based on progress to date it is expected that mill throughput will continue to ramp-up throughout the summer months as the plant team increases its familiarity with the mineralized mill feed and reagent characteristics.

• Underground (“UG”) mining continues to progress well resulting in a significant coarse mill-feed stockpile of approximately 110,000 tonnes of mineralized material readily available for ongoing mill commissioning.
• UG dewatering and refurbishment are on schedule to be complete in August and October respectively.
• An approximately 10,000-metre UG resource conversion and exploration drill program will commence in July.
• Mill commissioning has progressed as per the commissioning strategy outlined in the Company’s News Release dated May 19, 2015 (see TV-NR-15-10 for details).
• All mill circuits — Crushing — Grinding — Reagents — Flotation — Filtering and Tailings are now integrated and functional with a June end-of-month availability factor of approximately 94% at an approximate daily throughput of 1,500-tonnes-per-day. Mill throughput will continue to ramp up throughout the summer months.
• Commissioning initially focused on the zinc circuit where saleable-quality zinc concentrates have been successfully produced grading approximately 53-56% Zn. The commissioning team is now concentrating on the lead circuit, where lead has been successfully floated to produce an initial Pb concentrate, and ongoing copper circuit installation.

Dr. Mark Cruise, president and CEO of Trevali, commented:

Commissioning at our Caribou Zinc Mine continues to progress well as we’ve been systematically bringing the various milling, grinding and flotation recovery circuits online. While it is still early in the commissioning process and lots of work remains, we have made an excellent start. The Caribou team continues to do an exceptional job having achieved within a one-year period both mining and milling operations and commencing initial concentrate production.

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