Isn't copper cost per pound a little misleading? With the constant changes of labour costs, fuel cost, hydro costs and the changing price for the metals themselves. Are these numbers adjusted on a yearly/quarterly basis? I could see them hedging the metal prices (probably not a good ideal for now) but the other cost are impossible to accurately plan ahead for. So how can you really know what the cost per pound would be years down the road.

Can anyone shed light on this