Where can I see these facts for your pricing on cost per tonne?...

Where can I see these facts for your pricing on cost per tonne? And as stated before this was long term, also the long range forecasts for the price of iron ore is anyones guess. All we hear about is when the price dipped to $86 a tonne in Sept 2012, no one ver mentions that is was $140 just 2 months later, then averaged about $130 for the next year whem all experts said these days were finished and we had to get used to under $100 a tonne. Pricing facts please???