| Rank | Name |
| Chairman | Dr Loh Yee Jim |
| Vice-Chairman | Dr Ong Boon Hean |
| Honorary Secretary | Dr Zhu Ling |
| Members | Dr Lim Chong Hee |
| Dr Pang Yi Kit Philip | |
| Dr Tan Teing Ee | |
| Dr James Wong | |
| Co-opted | Dr Muthiah Harish Mithiran |
| Rank | Name |
| Chairman | A/P Kenny Sin Yoong Kong |
| Vice-Chairman | A/Prof Theodoros Kofidis |
| Honorary Secretary | Dr James Wong |
| Members | Dr Lim Chong Hee |
| Dr Muthiah Harish Mithiran | |
| Dr Ong Boon Hean | |
| Dr Pang Yi Kit Philip |
| Rank | Name |
| Chairman | Dr Victor Chao Tar Toong |
| Vice-Chairman | Dr Lim Yeong Phang |
| Honorary Secretary | Dr Ong Boon Hean |
| Members | Dr C Sivathasan |
| Dr James Wong | |
| Dr Lim Chong Hee | |
| Co-opted | A/Prof Theodoros Kofidis |
| Dr Pang Yi Kit Philip |
| Rank | Name |
| Chairman | Dr Victor Chao Tar Toong |
| Vice-Chairman | Dr C Sivathasan |
| Honorary Secretary | Dr Lim Yeong Phang |
| Members | A/Prof Theodoros Kofidis |
| Dr Loh Yee Jim | |
| Dr Muthiah Harish Mithiran | |
| Dr Ong Boon Hean | |
| Dr Soon Jia Lin |
| Rank | Name |
| Chairman | Dr James Wong Woon Wai |
| Vice-Chairman | Dr Victor Chao |
| Honorary Secretary | Dr Lim Yeong Phang |
| Members | A/Prof Theodoros Kofidis |
| Dr C Sivathasan | |
| Dr Loh Yee Jim | |
| Dr Soon Jia Lin | |
| Co-Opted Members | Dr Peter Robless |
| Dr Saw Huat Seong |
| Rank | Name |
| Chairman | Dr Wong Woon Wai, James |
| Vice-Chairman | Dr Victor Chao |
| Honorary Secretary | Dr Lim Yeong Phang |
| Members | Dr Soon Jia Lin |
| Dr C Sivathasan | |
| Dr Aye Winn Maung Maung |
| Rank | Name |
| Chairman | Dr Lim Chong Hee |
| Vice-Chairman | Dr Wong Woon Wai, James |
| Honorary Secretary | Dr Lim See Lim |
| Members | Dr Chua Yeow Leng |
| Dr Christie Tan | |
| Dr Sim Kwang Wei, Eugene |
| Rank | Name |
| Chairman | Dr Lim Chong Hee |
| Vice-Chairman | Dr Wong Woon Wai, James |
| Honorary Secretary | Dr Lim See Lim |
| Members | Dr Chua Yeow Leng |
| Dr Ooi Oon Cheong | |
| Dr Sim Kwang Wei, Eugene |
| Rank | Name |
| Chairman | Dr Chua Yeow Leng |
| Vice-Chairman | Dr Sriram Shankar |
| Honorary Secretary | Dr Lim Chong Hee |
| Members | Dr Lim See Lim |
| Dr Ooi Oon Cheong | |
| Dr Sim Kwang Wei, Eugene |
| Rank | Name |
| Chairman | Dr Chua Yeow Leng |
| Vice-Chairman | Dr Wong Poo Sing |
| Honorary Secretary | Dr Lim Chong Hee |
| Members | Dr Michael George Caleb |
| Dr Lim See Lim | |
| Dr Tan Yong Seng |