It's a good question, but it's a bit of a policy question. The way it's set up now is that there are royalties that flow from the mining activity, some of which go to the territorial governments and some of which go to aboriginal governments. These are important revenue sources for those northern governments, and you need a reliable source of assessing the value of something in order to come up with a collection charge for it.
These are activities in having a reliable assessment source. The payback to the taxpayer is the royalties themselves—