Rosemont Copper Announces Larger Resource, Improved Metallurgy and USFS Decision Date for Permitting

摘要

The Rosemont Copper resource calculation was updated in October 2008, showing a total (oxide, mixed, sulfide) measured and indicated mineral resource increase of 386 million pounds of copper equivalent, which represents a 5 percent increase over the previous resource calculation. The associated inferred resource has increased by 14 percent on the basis of an additional 268 million pounds of copper equivalent. The new measured and indicated oxide mineral resource has added 29 million tons, an increase of 39 percent to the previously calculated resource, at about the same grade of 0.20 percent Cu. This represents an increase of 120 million pounds of copper. The inferred oxide mineral resource copper content has increased by 21 percent.