The story “NovaCopper boosts resources at Bornite” (T.N.M., March 31–April 6/14) incorrectly stated the inferred contained copper figures for both the in-pit and below-pit estimates at Bornite, which were stated in millions instead of billions. In fact, Bornite hosts inferred in-pit resources of 110 million tonnes averaging 0.94% copper for 2.26 billion contained lb. The under-pit resource holds 56 million inferred tonnes grading 2.81% copper for 3.4 billion contained lb.
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