Back of the napkin says...
As a comparison FMG has yet to reach its 45mtpa target and has a market cap of $13.6BN
Two thirds of this is about $9BN
Half of this is Ansteel so $4.5BN
700 million shareholders means $6.42 per share as a starting point to further discount or add to.
cheers
Surly
As always DYOR