Furthermore, those cautionary statement down below also said this:

Forward-looking information in this news release includes statements about the delivery of the Positive Bankable Feasibility Study and Feasibility Notice to Teck; the commencement of the 120 day period for which Teck may exercise its Back-in Right under the Teck Option Agreement; the aggregate incurred Expenditures;

and,

that Expenditures have been incurred in accordance with the Teck Option Agreement and in Company's expected quantum. While Copper Fox considers these assumptions to be reasonable,

It's not much to go by, relying on the cautionary statements, but it seems clear that they were at least aware of the obligation to provide them and they did do the work at that time because the figure they arrived at was the same one that showed up on the January results.