Secretive 24-year-old Hong Kong woman named world's youngest billionaire
Microsoft founder Bill Gates (pictured) tops Forbes annual rating as Hongkonger becomes youngest on rich list with US$1.3 billion fortune

Twenty-four-year-old Hongkonger Perenna Kei Hoi-ting, also known as Ji Peili, has been named the world's youngest billionaire in the annual ranking of billionaires by Forbes magazine.
Mainland China supplied the second-highest number of billionaires on the list, not including 45 from Hong Kong, while the US had the most.

Topping the line-up of the super-rich for the first time in four years is Microsoft founder Bill Gates.
With an estimated net worth of US$1.3 billion, Kei holds 85 per cent of Logan Property, which listed on the Hong Kong stock exchange in December last year.
Her father, Ji Haipeng, is the chairman and chief executive.
Kei displaced Facebook co-founder Dustin Moskovitz as the youngest billionaire. Forbes said Kei holds a bachelor's degree in economics and finance from the University of London, but little else is known about her and no photographs have been issued.