$?Bill in a ? Life mine, page-152

Seems like HCH has a great asset but I’m wondering g where the value lies in copper? Looked around for all in sustaining costs for copper production and it appears as though the margins are tight as copper prices are close to the production costs. I understand this is open pit and there are processing facilities nearby which will lower cost but is anyone able to put a value on the potential net profit per year from Cortedera? Will HCH be able to grow substantially through profits alone or does the value lie in other large mining companies backing them? I saw Solgold rally from $2 to $45 rather quick in 2016 once they got their resource announced and Newcrest purchased 10% so I don’t doubt this thing could fly, but I just don’t understand why with margins so tight. Any insight would be appreciated.