SK Group has transferred three professional management vice chairmen from holding company SK Inc. to flagship subsidiary SK Hynix, creating an unusual leadership structure under Chairman Chey Tae-won. The executives are Seo Jin-woo, 65, responsible for China; Yoo Jeong-jun, 64, who oversaw the Americas; and Lee Hyung-hee, 64. Excluding the owner family—Choi Jae-won, senior vice chairman, and Chey Chang-won, vice chairman—three of SK Group’s four professional management vice chairmen now serve at one affiliate. The exception is Jang Dong-hyun, 63, vice chairman of SK Ecoplant. The arrangement places three vice chairmen alongside CEO Kwak Noh-jung, who remains SK Hynix’s operational commander. SK said the move reflects heightened geopolitical uncertainty in the semiconductor industry and is intended to bring global experience and expertise to the company’s overall management and mid-to-long-term vision. The three executives have begun one-on-one, in-depth interviews with all SK Hynix executives. Industry observers view the reshuffle as a way to mobilize veteran executives’ global networks amid U.S.-China rivalry and the AI semiconductor boom, while also recognizing leaders who helped guide SK through periods of crisis and growth.