The former league champions edged the Tarkwa lads 2-0 on Sunday at the Baba Yara Sports Stadium, Kumasi.
Hearts of Oak who lost 0-1 against Aduana Stars and drew 1-1 against Medeama by virtue of the score line have qualified, because the Phobians finished with a point and minus one goal difference, while Medeama also got a point, but minus 2 goals difference.
Derick Sasraku registered his 2 goal of the tournament to open the scoring in the first half, before Daniel Darkwa made it 2-0 in the second half to push Medeama out of the G6.
Last season they hammered Medeama 3-0 in the G6 tournament.
Aduana Stars and Hearts of Oak have qualified from the group and they will place group the two teams that will progress from group A.