Samsung SDI CEO nominee Choi Joo-sun, left, and Samsung Display CEO nominee Yi Chung / Courtesy of each company

Engineers were nominated to lead Samsung Electronics' battery, display and IT service subsidiaries on Thursday, a day after their parent firm chose not to replace its three vice chairmen to ensure stability.

Additionally, the nation's largest conglomerate tasked its foremost strategist with management consulting to enhance the financial soundness of the business group's affiliates amid the uncertain business environment.

Samsung SDI nominated Samsung Display CEO Choi Joo-sun as the battery firm's new chief.

The 61-year-old is an engineer, who previously worked for Samsung Electronics' semiconductor division, Micron Technology and Hynix before SK Group's acquisition of the chipmaker. He earned a doctorate in electronic engineering from KAIST and a bachelor's degree from Seoul National University.

Samsung SDS CEO nominee Lee June-hee / Courtesy of Samsung SDS

"The nominee is expected to spearhead Samsung SDI's innovation and enhance its corporate value, based on his know-how and leadership," Samsung SDI said in a press release.

His transfer led to the promotion of Samsung Display Executive Vice President Yi Chung to president and CEO to manage the display maker amid the intensifying competition with its Chinese rivals.

Born in 1966, Yi received a doctorate in chemical engineering from POSTECH after graduating from Sogang University. He previously worked for Samsung Electronics' liquid crystal display division and played various major roles at Samsung Display.

Samsung SDS also nominated Samsung Electronics Executive Vice President Lee June-hee as the successor to Hwang Sung-woo, who has led the IT service provider over the past four years. Lee earned a doctorate in electrical and electronic engineering from the Massachusetts Institute of Technology after graduating from Seoul National University.

Their appointments will be finalized after each company's forthcoming meetings of shareholders.

Samsung Global Research President Choi Yoon-ho / Courtesy of Samsung Global Research

On the same day, Samsung Global Research said that it established a management consulting office and appointed Choi Yoon-ho to lead the think tank's new office.

The predecessor of the Samsung SDI CEO nominee majored in business administration at Sungkyunkwan University and previously worked at Samsung's future strategy office, the business group's defunct control tower that disbanded in 2017 following its alleged involvement in the corruption scandal related to impeached President Park Geun-hye.

"Having served as the Samsung SDI CEO since late 2021, he is a keyman who laid the foundation for the growth of the battery business despite tough business conditions," Samsung Global Research said in a press release.

The think tank added that the 61-year-old's know-how and leadership will help in the sustainable growth of Samsung's affiliates.