Trevali updates resource estimates for Santander Zinc Mine Significant increase of in-situ Measured and Indicated contained metal to: 407 million lbs zinc, 69 million lbs lead and 4.7 million ozs silver; Inferred contained metal: 1.1 billion lbs zinc, 60 million lbs lead and 6.7 million ozs silver http://www.marketwired.com/press-release/trevali-updates-resource-estimates-for-santander-zinc-mine-tsx-tv-2200724.htm VANCOUVER, BRITISH COLUMBIA--(Marketwired - March 6, 2017)