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Going lower

Depletion is part of the mining industry. With every operation that starts up, the amount of mineral or metal left in the Earth decreases. The more mines that open, the harder it is to find new ones. With this problem comes the issue of declining ore grades.

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Falling grades will inevitably lead to falling profitability without decisive action

Unless companies venture outside of the traditional mining jurisdictions in search of new deposits, the resources they delineate are, inherently, going to be lower grade, or, in the case of high...