Jul. 9, 2002 Opening and election of the chairperson and the vice-chairperson for the first half (Chairperson: Dae-hyun Baek, Vice-chairperson: Ji-hoon Han)
Jul. 9, 2004Election of the chairperson and the vice-chairperson for the second half (Chairperson: Won-heon Choi, Vice-person: Chan-seop Im)
Apr. 28, 2006Vice-chairperson By-election for the second half (Vice-chairperson: Moon-hwan Cho)