It has to make a difference. It can't just be that surfactant A and surfactant B are different. Materially, identically, we've said it has an impact. So it's not just an insignificant change. We've said it has to have some impact, but we have to know about it.
The issues you raised for GROU are just as true with own use imports.
I think, too, one of the things that was a very significant announcement last week at the NAFTA meeting is that we are very close to having a first NAFTA label.