18. Aiyawatt Srivaddhanaprabha
Net Worth: $1 Billion
CEO of King Power, an airport duty-free empire throughout Thailand, Aiyawatt Srivaddhanapraha is the eighteenth youngest billionaire in the world.
He inherited the company from his father, which meant that at only 34 years old, Aiyawatt has a net worth of $1 Billion.
His father’s entire estate was divided between Aiyawatt’s mother and three siblings.
Aiyawatt Srivaddhanaprabha is also the chairman of Leicester City Football Club in the United Kingdom, and OH Leuven in Belgium.