Tan Heng Chew

Tan Heng Chew's fortune fell by more than $300 million as a price war and an oversupply in the region's car market hurt the family's Tan Chong Motor Holdings. His company assembles cars, makes parts, sells heavy machinery and operates Nissan and Renault dealerships. Tan is the executive chairman and shares fortune with brothers Eng Soon and Eng Hwa and other relatives. His late father, Tan Yuet Foh, was one of a group of brothers who started distributing cars in 1957; son Anthony cofounded GrabTaxi.