I believe you are correct on the original contract amount (10 mm) I have been told,but not yet verified that Massey wrote off the loan a while back. I think they are on the list of unsecured creditors and will be treated as such. I believe that they still need magnetite (hence their willingness to enter into another contract post-petition) How magnetite is used in the coal business is explained here http://en.wikipedia.org/wiki/Coal_preparation_plant