Given there copper on the surface and most of the resource holes are shallow 300mtres there is no overburden yeah? Low strip
What are the costs to mine it roughly ?
Most porphyry are low percent - what are your expectations ?
They typically contain between 0.4 and 1 percent copper in concert with smaller amounts of other metals, such as molybdenum, silver and gold. Porphyry copper mineral deposits are usually massive, with extraction taking place by open-pit mining.
I got no idea but this is open pit in USA - this is not that big compared to others and its 1200 deep.
Given there copper on the surface and most of the resource holes...
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