can anyone explain share price drop, page-22

Most recent quarterley estimates for production costs as researched by Diggers and Drillers are:

PAN $4.69/lb
MCR $6.12/lb
WSA $$.23/lb
MRE $5.03/lb
IGO $4.15/lb
FXR $5.93/lb

Mirrrabella not in production yet, but in their May presentation they estimated $2.77/lb

Fuel, especially for those mines with their own power generation is actually quite a large expense for U/G mines, especially as they get deeper. More fans, more pumps means more gensets, plus there's longer hauls for the trucks and boggers.