"What price are you assuming for the concentrate and how does...

"What price are you assuming for the concentrate and how does this vary over the mine life?"

WhatNoGravy, I would be most interested as to how you would personally calculate a varying sale price over 12 years for concentrate into such a valuation. Please, show us some working, I would be most appreciative.

ABN, I could not give you an accurate response as to the analysis of your workings, but your results would not surpise me terribly.

"the way I see it, even if my calc is 30% too high for the copper production, the current market cap puts negative value on their other assets, which seems strange in this environment."

I would also expect this to be the case at these prices as the SP has fallen a huge amount on sentiment. Thanks for sharing your figures ABN. Hope this dips a little more so I can re-enter the portion of my holding I sold. GL.