It is not easy to understand your english but, I can help with some of the points you make...
there is no hedge book - dio is unhedged
the forecasted costs and margin are contained in the Frog's Legs Feasibility Study document LOM A$505
DIO has took the unusual practice of expensing ALL COSTS associated with capital development (stripping of HBJ, Bakers Flat and Shirl Open Pit) in the last quarter cash operating costs rather than seperating the items for clearer analysis and review. If $9.05m is stripped out, you can see that the cash operating cost would equal approx A$350 /oz
DIO Price at posting:
0.0¢ Sentiment: Buy Disclosure: Held