9. Koon Poh Keong, Poh Ming & Poh Weng – $2.6 billion
Koon Poh Keong, Poh Ming and Poh Weng started Press Metal with two other brothers in the mid-1980s.
The brothers pooled $50,000 to start the aluminum-extruding company when Malaysia was in a recession.
Today Press Metal is Southeast Asia’s largest integrated aluminum producer and competes with Rio Tinto, Russia’s RUSAL and the Aluminum Corp of China.
Poh Keong is group chief executive while Poh Ming is executive vice chairman and Poh Weng is executive director.
Poh Ming and Poh Keong, the two biggest shareholders, made the list of Malaysia’s richest for the first time in 2017. Poh Weng joined them in 2019.