I can tell you first hand that is what most foreign owned companies DO or try to do in some way and they eventually show a profit, albeit a small one.
I worked for one, and as part of the reason I do not any more, and now I have a small and successful company it really gets up my nose they pay less than I do!
Having said that I doubt that the big miners do it that way as it would be an easy target for the ATO, but you can be sure there are some little bits here and there.