Ann: Grange commences Exploration Decline, page-32

Far too simplistic to compare Kiruna to Grange in terms of CAPEX and OPEX. They're completely different mining methods. Here's a couple of paragraphs from an article in Australian Mining:

... Australians also have the skills to make this shift, as they have the experience in creating decline mines, which are cheaper to develop than conveyor or shaft mines.

"Decline mining is definitely an Australian capability which is being pushed out , particularly in Africa, as declines are more cost and infrastructure advantageous compared to shaft mining," Stokes said.

Pybar’s Noort added that “when mines are starting declines it will usually be at the bottom of the pit, as it is just much easier for operators to start as an open pit and access that higher grade, near surface ore and then move to the point where they move to either an underground or sub cave/ block caving model to access the remaining ore, rather than go straight to an underground model”.

By pushing directly into the ore body removing waste rock is minimal. Perhaps the underground operation may become semi-autonomous??
Don't agree with the real estate but probably a hidden agenda behind that one.