dhimurru , check out this link, it should give you answer:
15th Dec 2010 Announcement:
http://www.asx.com.au/asxpdf/20101215/pdf/31vlwbfttkfct2.pdf
Note:
IFE only have small quantity of DSO (Hematite 50-60% FE), most of their resource are Magnatite Ore(25-35% FE) which can cost billion capex to produce(require wet process).
