I'm guessing this was a condition for GM's T2, and maybe even the DOE loan. I would be shocked if they dipped into it before all of the GM and DOE loan monies are exhausted, so maybe in two years or so, or even later, but it's the perception right now. Surely it was inevitable. I expect that news on both the DOE loan and GM T2 will be coming very shortly. 

The flexibility LAC will have in terms of the nature of the securities they can offer through this is impressive. These guys are playing chess not checkers.

Lithium Americas Corp. (LAC) - FORM F-3 | Securities Registration