VALE is number 2 in the world for a reason, companies with Good properties come to them, they decide if they are interested in a JV option and the Percentage, also on if they will drill or not and in what order. They had higher hopes for cornerstone and offered a better JV option 60/40. That turned out to be a waste of Vale's time and money. I don't expect them to be in any hurry to do any work on Lucky, they had less interest as it was.
I'm sure they have much much better properties proposed to them on the table to be worked on, much better than the KATX 80/20 option.