The March 2016 Prefeasibility Study for the San Rafael Project adjusted for recent spot prices of $20.00 per ounce of silver, $1.01 per lbs. of zinc, $0.83 per lbs. of lead and 18.5:1 for the MXP:USD exchange rate.
 Pre-Feasibility pre‐production capital reduced from $22M using current exchange rates.
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