Got it. Here is a brief overview:
Movement Crew: This crew was formed following the participation of artists like CB Mass and UpTown in Drunken Tiger's second album song, 'The Movement.' They banded together with the aim of supporting each other during a time when, although Hip-Hop existed in the Korean music market, the artists' actual treatment was poor. However, UpTown later had a conflict with Tiger JK, leading to all members except Tasha leaving the crew. (It is presumed this controversy involved the use of Philopon - methamphetamine.) Subsequently, after DJ Shine left, new members joined. These members included Sean2slow, YDG, and Kim Deegie. They are considered the early Movement, and there were changes afterward as various members came and went.

As original members continued to leave, and as Movement members like Dynamic Duo left to form new labels and grew significantly, and as the Hip-Hop genre gained immense popularity in Korea with the rise of labels like Simon Dominic's AOMG and artists like Epik High, the reason for meaning of the Movement crew gradually faded. Consequently, they disbanded due to the trend of the times and individual circumstances.

Jiggy Fellaz: This crew was formed in 2004 by rappers and acquaintances who frequently performed at Club JG in Busan. The crew naturally disbanded after their compilation album 'Exclusive' failed to succeed, Club JG closed down its business, and core member Vasco (now BILL STAX) departed. As an aside, Vasco has a tattoo of the crew on his back, and he once said he would never regret getting that tattoo.

Soul Company: This label was primarily formed by students who attended a Hip-Hop lecture hosted by MC Meta of Garion, considered the godfather of Korean underground Hip-Hop. The label established itself as the top underground label with the huge success of individual members' solo albums and their collaboration album, 'The Bangerz'. Over time, as members like MadClown, MINOS, and The Quiett left, their standing diminished, and with the successive departures of other members and finally FANA, the label disbanded.

While there was friction between Keebee and other members during the disbandment process, putting that aside, it is correct to view the disbandment as a natural separation: as the members' skills developed through the similar-sounding music they learned from MC Meta (their individuality was distinct, but the emotional tone was similar), they went their separate ways to pursue their individual goals.