BP Silver Initial Drilling Intersects Significant Mineralization Within Cosuño Lithocap

We expect Cosuño’s grades to increase when we drill deeper into and below the lithocap. Lithocaps are extensive zones of clay and silica alteration that form in the top part of Bolivian polymetallic vein systems and tin porphyries, similar to those which overlie porphyry copper deposits. The nearest neighbour to Cosuño, in a similar geological setting, the Pulacayo deposit, has a large lithocap that is barren and conceals a major vein that produced 640 million ounces of silver and 200,000 tons each of lead and zinc.”