I don't think you'll find much info about the Seoulpa rings outside of Seattle because if I remember right that's really the only place they exist.
If you're doing an adventure outside Seattle then you have 4 real options:
1) Use them anyhow and pretend that the events that lead to them forming happened in your location
2) Make up a similar group with similar background and interests
3) Pick some other crime organization
4) Move the adventure to Seattle
All work, it's your world after all.
Ghost Cartels will feature heavily on one particular ring
[ Spoiler ]
Komun'go Seoulpa ring
but that's only in the first of three main story arcs.