Sierra Resource Group, Inc. (OTCBB: SIRG) is a U.S based exploration and mining company committed to the exploration, discovery and development of gold, silver, copper and other mineral resources. Sierra's primary asset is 80% ownership of the Chloride Copper Mine located near Kingman Arizona. Sierra has reached an agreement to purchase half of the minority interest taking its overall ownership to 90%. For the Best Penny Stock Picks Subscribe to http://www.insidebulls.com/