Koo Kwang-moment took the helm of his family's business after his father died in May. Koo inherited his father's 8.8% stake in LG,giving him 15% of the company. His holding is valued at $1.55 billion. He lives in South Korea, and the inheritance or "death" tax is one of the highest in the world.
Read more: Insanely tall Death Tax Keeps LG Heir Out Of Billionaire's Club
Source: celebritynetworth.com