They have been profitable. They've been particularly profitable in recent years, because the Chilean production went down significantly. But we understand that the Chileans are coming back with their production. So we'll see what happens with the future economic viability. But right now, it has been and looks like it will continue to be economically viable.
I'd make two points, but I won't say whether I would invest in it. In our view, what's appropriate at this time are investments in the demonstration projects, with private funding—and not government doing it on its own. In our experience and our view, we've wanted to see private partnerships. There is a benefit to industry in doing this, to whomever takes this on. And the benefit is that they get the intellectual property if the thing works.
But what we've seen so far is that most of industry is not willing to take it on, on their own, because there's not a sufficient economic margin to make it viable. We've even seen one instance in Canada where a company was saying that it was going to do it and that it was applying for government funding to support it, but then recently they said they didn't want to proceed because of the market conditions. They're not saying they won't do it; they're saying they don't want to do it right now.