I think you might find that the Sutton Forest holding has some coking coal - I did a little digging and the Wollongong area has always had the good stuff, but I'm not sure just how much Cockatoo has, or more importantly Anglo had before the sale.
I think the thrust of your post is important though - some posters make a wild statement without proof - on several allied threads.
Bottom line is that Cockatoo is by far a thermal producer with a smattering of coking - that's where Posco comes in. By inference of course that is why any talk of a takeover is rubbish.
Cheers Cab
"The company now has investment exposure to major new 100Mt+ high quality coking and 400Mt+ thermal coal projects in NSW as well as an enhanced position as a major force in the emerging Surat Basin thermal coal province via a 51% interest in two well situated and complementary Surat Basin projects."