Ann: First Quarter 2017 Preliminary Results & Reporting Calendar, page-80

All likely correct Rusty and thanks for providing.

I'm not personally trying to value the company and haven't the expertise to do so and therefore took a naïve approach and assumed that the Euroz analyst with his expertise provided a black box with 3 inputs ( Production tonnage, Cu price, C1 costs ) and one output (SP).

His black box indicated that for 14.0kt, 2.65 and 1.31 I'd get 18c out the other end.
Vary those inputs up or down and the output changes...as you've shown.

I was pointing out that since the recent company release stated 1.51 as the C1 cost for the quarter, this was significantly different to the analysts assumptions. If we're going to take his guidance on value we need to be aware of his assumptions as well.