Do you have a source for the " increased dramatically" comment or is it conjecture on your part? The only numbers that matter to Teck are shown in the table below. We will get an update this week when the latest AIF is released but no changes are expected as they haven't changed much in years. They use conservative numbers because of the risks involved. The exchange rate has improved a lot but the metal prices used by Teck are still less the 2013 FS numbers.