Kok Thay Lim

Lim Kok Thay opened the Genting Jeju Casino in South Korea in January, part of a multibillion-dollar push to expand the Genting Group globally. Fortune is down by $1 billion in a sluggish year for its casinos in Malaysia and Singapore. Business at Genting Malaysia was hit by the drop in Chinese visitors after Malaysia Airlines Flight 370 disappeared a year ago, while Genting Singapore is seeing fewer high rollers as the mainland Chinese economy slows. Wealth is shared with his mother, Lee Kim Hua, and other family members. His late father, Lim Goh Tong, started the business after arriving in Malaysia from Fujian,China at age 19. The firm had revenue of $4.4 billion in 2016 and controls casinos in Malaysia, Singapore, the Americas and the U.K. The Genting group of companies also own Star Cruises and Crystal Cruises, and make palm oil. The Lim family has bankrolled two Native American casinos since 1991