Caribou cost of mining The total cost of running Caribou is probably around $1.20 to $1.25 per pound if you add in things like capital costs, exploration, and cost of opening and closing the mine every few years.
The ONLY way that Caribou should EVER be reopened is if ALL zinc production for at least 2 years can be sold forward for over $1.50 per pound. Without that guarantee of profitability, it is just not worth it.