HP Dato Abdul Majid Mohamad(1997 – 2001, Malaysia)
HP Rudolf W. Matindas(2001 – 2003, Indonesia)
HP Khoo Boo Khean, PhD (2003 – 2005, Malaysia)
HP Pingeran Matusin Matasan(2005 – 2007 and 2013-2015, Brunei Darussalam)
HP See Seng Guan(2007 – 2009, Singapore)
HP Diah Kirana Kresnawati (2009 – 2011, Indonesia)
HP Wicha Jiwalai, PhD(2011 – 2013, Thailand)
HP Mohamed Azmi Mod Zin(2015 – 2017, Malaysia)
Engr. Randolf Sevidal Vicente(2017 – 2019, Philippines)
Mr. Gerry Ong(2020-2022, Singapore)
