pooh said:
"Also there is a vast diference in the economics of a byproduct of large scale low grade operations and a boutique small tonnage high grade deposit."
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pooh, what are you saying here? I presume you mean IVA has the latter- the boutique deposit. Are you saying RIO has chosen the cheap version?
IVA will update soon re MErlin. Let's hope they double the deposit, and halve the costs!