SK Group carried out president-level appointments on the 30th. Lee Hyung-hee (63), head of the SK Supex Council communications committee, was promoted to vice chairman, producing the first vice chairman promotion in four years since 2021. Jung Jai-hun (57), SK Telecom's head of external relations, was appointed the new chief executive officer (CEO) of SK Telecom.
SK Group said it convened an extraordinary Supex Council meeting on the morning of the 30th and shared president appointments decided by each affiliate's board of directors. Through these appointments, SK plans to quickly wrap up work to strengthen the business structure and improve the financial structure.
SK Co., the holding company of SK Group, said Kang Dong-soo, head of the PM institutional sector and an expert in finance and business development, was promoted to president to oversee overall operations and assist CEO Jang Yong-ho. Kang contributed to strengthening SK Co.'s business structure and financial structure.
SK Telecom's new president is Jung Jai-hun, the chief governance officer (CGO). Ryu Young-sang (55), the current SK Telecom president, will serve as chairperson of the SK SUPEX Council's AI committee and focus on spreading AI across the group. To bolster competitiveness, SK Telecom will reorganize the company into a communications CIC (company-in-company) and an AI CIC structure, and appoint Han Myeong-jin (52), CEO of SK Square, as head of the communications CIC to solidify its competitiveness as Korea's No. 1 telecom operator.
SK On, SK Group's battery subsidiary, appointed Lee Yong-wook (58), CEO of SK Siltron with strong expertise in materials and manufacturing, as president to work with President Lee Seok-hee (60) to continue structural reforms for sustainable growth.
SKC appointed Kim Jong-woo (56), CEO of its subsidiary SK Enpulse, as president, and SK ecoplant named Kim Young-sik (58), head of mass production at SK hynix, as new president to lead the business alongside Vice Chairman Jang Dong-hyun (64). Song Chang-rok (56), head of SK Co. Materials CIC, was promoted to president to lead the advanced materials business.
SK Innovation E&S appointed Lee Jong-soo (54), head of the LNG business division, as president to seek new growth.
SK Square appointed Kim Jeong-gyu (49), head of the secretariat at SK Co., as the new president. Kim, the new president, is expected to spearhead securing future growth engines for SK Square based on global investment expertise.
SK AX appointed Executive Vice President Kim Wan-jong (52), who has broad experience in the cloud business and ITS consulting and currently oversees AX's core businesses as chief customer officer (CCO), as the new president.
At SK hynix, Cha Seon-yong (58), head of the Future Technology Institute, was promoted to president. By developing next-generation memory semiconductor technologies, Cha will take full command of the institute with the goal of market leadership across all areas of memory semiconductors.
SK Siltron appointed Jeong Gwang-jin (55), CEO of subsidiary SK Siltron CSS, and SK Broadband appointed Kim Seong-su (59), head of the wired and media business division, as new presidents, respectively. Both are seasoned leaders in their fields and are expected to lead on-site-focused management based on a deep understanding of their organizations.
The Supex Council, SK Group's top consultative body, also made personnel changes. Yoon Pung-young (51), CEO of SK AX, moved to serve as president in charge of the Supex Council, and is expected to further strengthen SK member companies' "together again" synergies and accelerate AI/DT-based transformation.
For the communications committee chairperson, Yeom Seong-jin (53), head of the CR team, was promoted and appointed as president. Yeom, the new chairperson, oversees the group's external relations functions and is credited with helping raise the group's overall level of external engagement.
An SK Group official said, "These appointments are aimed at quickly resolving pending issues each affiliate faces amid an uncertain business environment and strengthening field- and execution-centered leadership."