BHP have a lot of good grade iron already and they already own rights to it. They can also buy anywhere in the world, I don't see BHP being interested.
If there is no better offer there will be some very large sales to Redstone at the end of the month, rather like they jumped from a few percent to 20% in one day.
In the absence of a better offer they will get about 60% acceptance assuming FMG hold.
