Yes, absolutely.
I think there are two things of value from waste. We're looking at expanding our circular opportunities. Again, we have 100 years of waste rock in Sudbury. When we have brought through international delegations, they've asked to buy it, because they see the value of the minerals there and the technology to extract more of them. They are interested not only in the quantity of existing nickel, copper and cobalt but potentially in other minerals as well. Our tailings are something that we can look at converting from a liability into an asset, because the technology exists. The challenge is whether we can do it at scale and at cost that a customer wants. We've often heard customers, particularly from Europe, say that they'd love to get that out of there but don't want to pay a premium for it. That's going to be the challenge.