8) Khoon Hong Kuok – Net Worth: $2.2 Billion

This 64-year-old billionaire is the chairman and chief executive of palm oil giant Wilmar International. Currently he is diversifying the company into other commodities and consumer food items.

7) Raj Kumar & Kishin RK – Net Worth: $2.2 Billion

This father-son duo is among Singapore’s leading landlords with a string of prime properties that include hotels, office towers and medical suites under their Royal Holdings/RB Capital portfolio.