I know those western countries are very picky about safety and meeting codes and standards.  I know alot of mines in north america have huge capital investment because they have to build everything to code.

Do you know how strict the Workers Compensation Board (or whatever it's called) is in NZ?  Also, when do you have to start following their requirements?  I am sure if you are a one man shop, you don't have to worry about that kinda stuff, but when you start employing people (I think you would have to with 2 MW mine) then it might be mandatory?