[Koda Kumi] The 207th Thread - Take a Walk in the Summer of '21

[Corvina]

Yes, it's hard to tell, but I think if it's demos Kuu bought and reworked, the original record company of the composers/producers is listed in the credits (just like with covers).
Here's a quick example with SHUTOUT/ Livin' La Vida what I mean:

Spoiler:

"Original" songs (non-demo) written for and with Kuu don't have that.
All T-SK songs are among that.
UFC has a couple of Swedish writers in their team, so might be they also write together with non-UFC composers as freelancers.
DO ME e.g. was written by T-SK and Hiromi (both UFC) and a third person.
And there are Swedish and Nordic composer teams writing for the Asian market/ Asian artists only.

And yes, if it wasn't clear already, he is one of my favourites, too!