"Odds are about 99% that these properties aren't economic."
You think so? I would put the odds at 100% that they are economical. In fact, I am betting a very large sum of the money that they are.
Just about every single geologist(and there is has been a parade of them including some of the top experts in the World) who have been on the Alto De Lipangue believes that it contains an economically viable deposit of gold, silver, copper and moly.(Many think it is of World Class size.)
Even the Chilean Copper Commission thinks so or why would they bother to list a company than owns a property that is worthless? Why would Enami & Codelco be involved as they are with all the companies on the list?