Ong, a Fulbright scholar, is a PhD holder in political science from Duke University, USA. He also has a Masters in Economics from Cambridge University and a degree in Economics from London School of Economics. Prior to that he was an ASEAN scholar who completed his "O" and "A" levels in Raffles Institution and Raffles Junior College in Singapore respectively.
https://en.m.wikipedia.org/wiki/Ong_Kian_Ming