(L-R) CJ Group chairman Sohn Kyung-Shik, LG Group chairman Koo Bon-Moo, Hanhwa Group chairman Kim Seung-Youn, SK Group chairman Chey Tae-Won, Samsung Group's heir-apparent Lee Jae-Yong, Lotte Group Chairman Shin Dong-Bin, Hanjin Group chairman Cho Yang-Ho and Hyundai Motor Group Chairman Chung Mong-Koo take an oath during a parliamentary probe into a scandal engulfing President Park Geun-Hye at the National Assembly in Seoul on December 6, 2016. REUTERS/Jung Yeon-Je/Pool?