You make a critical point here which I am sure would not be lost...

You make a critical point here which I am sure would not be lost on HGO management. If we are to achieve the "have your cake and eat it to" scenario (big divy + vigorous ongoing business) , it would be critical to ensure new ore is available once the giant pit processing is done. 

In fact once mining concludes at the giant pit, it is important that works can begin for the next mining project.or at least once remediation works are complete.

Otherwise there would be implications for the existing workforce, which nobody would like to see...