C hey Tae-won is a prominent South Korean business magnate and the chairman of SK Group, one of the country's largest family-controlled conglomerates, or chaebols. He inherited the leadership of the group from his late father, who had taken over from Chey's uncle, the company's founder. SK Group has vast and diverse business interests, with its two main pillars being energy and telecommunications.

Under Chey's leadership, SK Group has grown into a global powerhouse. Its subsidiary, SK Hynix, is the world's second-largest memory chip maker, while SK Telecom is the country's largest mobile carrier. The group is also a dominant player in oil refining and chemicals through SK Innovation. Chey's tenure has been marked by both aggressive global expansion and significant legal troubles, including a high-profile imprisonment for embezzlement, from which he was later pardoned. More recently, he has been involved in a record-breaking divorce settlement that has put his control over the company under scrutiny.