We actually don't do that. One of the things that I think makes COSIA special—but legal, frankly—is that we've signed a series of joint venture agreements among these companies, one for each of our four priority areas. Those joint venture agreements define the technological scope within which the companies operate on COSIA terms—shared patents—and outside of that scope, the companies don't deal with it at this point.
It's always a trade-off between focus and impact. At this point, the companies have decided to focus on the upstream environmental performance of water, land, tailings, and greenhouse gases. At some point in the future, they may expand that, but at this point that's legally outside of our mandate.