| Chair | Start | Finish |
| Kevin J. Gough | 1st November 1987 | 30th September 1988 |
| Edward W. Palmer | 1st November 1988 | 30th September 1991 |
| Simon J. Ellis | 1st October 1991 | 31st December 1998 |
| Edward W. Palmer | 1st January 1999 | 31st December 1999 |
| David R. Iskander | 1st January 2000 | 31st December 2000 |
| Simon J. Ellis | 1st January 2001 | 31st December 2004 |
| Peter M. McLarty | 1st January 2005 | 30th June 2007 |
| Sam Shiao | 1st January 2011 | 31st December 2011 |
| Chandima Ekanayake | 1st March 2012 | 31st December 2013 |
| Nilesh Modi | 1st January 2014 | |
