Cost is the issue, whatever the solution. The question is how to increase processing of the fines, which will eventually cease to be a problem.
The problem is that the CIL circuit doesn't have enough capacity for the volume of fines they need to process:
So, the problem is how to increase capacity of the gravity/CIL circuit over the next few years (through 2017?). Alternatively, they could expand the heap leach operation, while stockpiling the excess fines. Or a combination of both.
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