comparison to prc, page-5

I'm afraid you're wrong on all accounts there buddy

NO WHERE in NZ will you have 2.5bn tonnes in reserves
PRC has a maximum exploration potential of <60Mt

CAPEX of BTU is much lower due to Open Cut strip mining.

UG Hydro Mining also means PRC will have a lower recovery rate than BTU.

In all likelihood BTU will hit their production milestone much sooner.

Also you cannot say 7-10 years is uneconomical to run without a basic understanding of the economics of the mine

Premium Coking Coal, low CAPEX/OPEX, 1Mtpa, this is a cash machine with a very short payback and high IRR