> No, I am not being dense.

Yes you are. An easy tell is "citation needed".

> there is no law

Another tell.

> If RoK wanted to spend a percentage of their GDP on enrichment facilities they could

And they have in the past. Guess who shut that down?

> They don't have an urgent reason to.

South korea is surrounded by 3 nuclear powers ( north korea, china, russia ) and militarily occupied by another nuclear power and yet, they have no urgent reason to? Good one.

> Why would RoK want their own enrichment facilities?

This is just absurd. Your questions answer themselves. And it's obvious you already know the answers but just are trying to distract.

You keep googling and I'll look for the citations. Okay buddy?