There's a new kid in town on Forbes magazine's annual ranking of the world's billionaires.
24-year-old Perenna Kei Hoi-ting is now the the youngest billionaire in the world, displacing Facebook co-founder Dustin Moskovitz.
The wealthy Hongkonger who is also known by the name Ji Peili studied finance in London, has an estimated net worth of $1.3 billion and holds 85 per cent of Logan Property, of which her father Ji Haipeng is the chairman and chief executive, but little else is known about her.
She is one of 42 new female billionaires on the list and one of 45 billionaires from Hong Kong. Microsoft founder Bill Gates is back at the top of the list and is estimated to be worth $76 billion.