I imagine they work off an overdraft (revolving credit) facility. So net cash would be net corporate debt which is about $1billion at last report. I mean you would assume if they didn't pay dividends they would have somewhere over $150million at the end of this six months, however this will be used to repay debt in Feb.
In an earlier post somewhere I tried to set out what I belived the short term cash issues were. Not sure how long ago now, but I will try and find it.
Cheers
BBI Price at posting:
9.8¢ Sentiment: LT Buy Disclosure: Held