4. Hong Piow Teh
Net worth as at 25/09/17: $5.2 Billion
Low-profile tycoon Teh Hong Piow gets the bulk of his wealth from his 24% stake in Public Bank, Malaysia’s third-largest banking group by assets. Its reach extends to Hong Kong, China, Cambodia, Vietnam, Laos and Sri Lanka. He founded the bank in 1966 and it’s maintained a track record of consistent profitability. He started his career as a clerk with Oversea-Chinese Banking Corp. and he also owns 44% of insurance business LPI Capital. In 2016 he became the first Malaysian banker to get a Cambodian royal award for his contribution to economic development in Cambodia.