Ernesto isn't getting excited until we have $6 copper, imo. He is a billionaire with servants and butlers so he doesn't need the money. His next (unneeded) billion in net worth is highly dependant on copper, gold and moly prices and the future for these metals looks blindingly bright. I don't blame him for playing the holdout game now, now that the table has turned so-to-speak.
So I would recommend that you should try to estimate as to when we get to about $6 copper and use that event as a general guide on when Ernesto may act. If you also agree that the next few years should offer a ride that is nothing short of "wild" in the metals markets, then decide now if that is too long to wait for and sell now, or, sit back, relax and sleep really well at night that your investment is "money in the bank" and the inevitable motherload payday will be even larger in just a couple of years. I know most oif us have waited over a decade, we all want it in two weeks or two months.
Of course it could happen sooner if Teck gets smart and steps up with a fair price before the super-cycle really gets going. If not, I'll be super patient at this stage because the future value of our deposits is only going to skyrocket over this new cycle.
JMHO
Tick tock, Teck tock...