His grandfather , Ong Tiang Swee was Kapitan China , and also President of the Chinese Chamber of Commerce .
His great - grandfather Ong Ewe Hai was a prominent Kapitan China to the Hokkien community of Sarawak , and a successful businessman in multiple fields .
great - grandfather 's grandfather , Ong Tiang Swee Kapitan China   China , and also President of the Chinese Chamber of Commerce .
His great - grandfather Ong Ewe Hai was a prominent Kapitan China to the Hokkien community of Sarawak , and a successful businessman in multiple fields .