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Is Primary Copper Ore Grade Lower Than Byproduct

Surprise find boosts Freeport McMoRan . For the quarter, that change in ore grade at Grasberg meant higher than expected gold production 480,000 ounces, versus prior guidance of 325,000 ounces. This has led the company to lower its projections for the net cash cost net of byproduct credits of copper this year, from 1.10 per pound to 1.04. Freeport McMoRan.

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