I will take a stab at this.
First of all, in terms of the status, we don't know the status. We know, informally, that Mexico would like to assent to it, but we don't know anything further. This really is an in-house domestic matter for those countries.
In terms of implications for Canadian investors, presumably it means that when they are dealing with those states, resort to the ICSID facilities would not be possible. But what we are looking at of course is that, if we do this, Canadians will have resort when they are dealing with the 143 other members.
So while it's correct that those three are not yet ICSID members, it does give access to ICSID facilities for those 143 others, which is obviously very significant.