VANCOUVER, BRITISH COLUMBIA – Trevali Mining Corporation (TSX:TV)(OTCQX:TREVF)(LMA:TV)(FRANKFURT:4TI) reports preliminary production results for its second quarter 2014, ended June 30, 2014, of approximately 12 million payable pounds of zinc, 4.4 million payable pounds of lead and 187,000 payable ounces of silver from the Santander Mine in Peru.
Average recoveries for the quarter were 88% for zinc, 84% for lead and 70% for silver. Q2-2014 throughput at the 2,000-tonne-per-day-rated Santander processing complex was 175,384 tonnes, delivering a mill utilization factor of 99.7%. Average head grades of 4.20% Zn, 1.42% Pb and 1.44 oz/ton Ag were realized to produce approximately 13,048 tonnes of zinc concentrate averaging 49% Zn and 3,680 tonnes of lead-silver concentrate averaging 57% Pb and 48.8 oz/ton Ag.
The decrease in metal production for the second quarter (versus Q1) was primarily due to modifications and optimization of underground production workings and mine plan within the Magistral North Deposit. This program was aimed at incorporating the recently discovered Rosa Zone (high-grade lead and silver mineralization) into production scheduling, primarily where it intersects the Magistral North Zone. In these areas the mineral body widths thicken dramatically from approximately 6-8 metres to 15-18 metres on average. The modifications to the Magistral North-Rosa mine plan are essentially complete and the Company expects quarterly metal production units to increase going forward.
Trevali remains well on track for its 2014 Santander production guidance estimate of approximately 670,000 to 690,000 tonnes of mill throughput, with average head grades estimated at 4.0% to 4.2% zinc, 1.5% to 1.7% lead and 1.4 oz/ton to 1.6 oz/ton silver to produce, in payable metals, 42-45 million pounds of zinc; 15-17 million pounds of lead and 700,000 to 720,000 ounces of silver.
For more information, please visit www.trevali.com.