 So essentially what you're saying is when you make the cement, the byproduct of it actually sequesters carbon in this magnesium byproduct, which you can then do what with? You bury it underground? What do you do with it? Yes, there's a lot of things you could do with it. Basically, the simplest thing to do with it is just put it in our tailings pile and then backfill our quarry with it at end of life. So when you've got an empty quarry,