Jae-Won Choi

SK E&S Co. Ltd. provides liquefied petroleum gas and electric power generation services. It serves liquefied natural gas, power business, district heating, city gas, renewable energy and global business sectors. The company was founded on January 1999 and is headquartered in Seoul, South Korea.

SK Holdings Co., Ltd. is a holding company which engages in management of its affiliates and subsidiaries. Through its subsidiaries it operates in the fields of energy, chemicals, information technology, logistics, and services. The company was founded on October 13, 1962 and is headquartered in Seoul, South Korea.

SK Planet Co., Ltd. provides e-commerce and digital content platforms and services. It operates through the following business areas: Next Commerce, Digital Platform and Marketing Communication. The Next Commerce business division offers online-to-offline commerce services and online marketplace platforms. The Digital Platform business division encompasses digital content platforms. The Marketing Communication division provides communication planning, promotion, interactive communication and advertising platforms. The company was founded on October 1, 2011 and is headquartered in Seongnam, South Korea.

SK Telink Corp. engages in the provision of VoIP services. Its services include international calling, corporate number information services, and SK 7mobile phones. The company was founded on April 9, 1998 and is headquartered in Seoul, South Korea.

Part of SK Innovation Co., Ltd., SK on Co., Ltd. is a leading electric vehicle (EV) battery developer, manufacturer, and solutions provider. The company is based in Seoul, South Korea, and has a worldwide presence with battery plants currently operating or in construction across various locations. The South Korean company was launched in 2021 as an independent company after SK Innovation, the largest energy company, decided to split off its battery business. SK on aims to become a world leader in the clean energy industry by leveraging its production base and R&D capabilities, as well as its production and quality management know-how. The company was founded in 2021, and the CEOs are Jae-Won Choi and Dong-Seob Jee.