| Aderemi Ladega | Secretary | 11 Apr 2005 | 23 Mar 2009 | British | - |
| Andrea Margaret Thomas | Secretary | 1 Sept 1997 | 11 Apr 2005 | Other | - |
| Anna Cheng Catalano | Director | 1 Aug 1999 | 1 Dec 2001 | Us Citizen | 67 years |
| Brian Peevor | Secretary | 26 May 1994 | 31 Aug 1997 | British | - |
| Burrell Cleason Culp Jr | Director | 1 Jan 1995 | 31 Aug 1995 | American | 79 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | Other | - |
| Clive Warren Chambers | Director | 28 Jul 1992 | 25 May 1994 | British | 86 years |
| Colin Peter Saunders | Director | 26 May 1994 | 31 Aug 1995 | British | 78 years |
| Dave Duncan Struan Robertson | Director | 28 Jul 1992 | 25 May 1994 | British | 77 years |
| David John Pearl | Director | 28 Jul 1992 | 28 Oct 1993 | British | 78 years |
| Douglas Patrick Chapman | Director | 23 May 1997 | 15 Jul 1998 | British | 76 years |
| Fiona Anne Macleod | Director | 1 Aug 2006 | 30 Jun 2009 | British | 59 years |
| Fiona Victoria Ryder | Director | 9 Feb 2021 | 17 Dec 2021 | British | 51 years |
| Francis William Michael Starkie | Director | 1 Sept 1995 | 30 Sept 2009 | British | 77 years |
| Gillian Elizabeth Young | Secretary | 28 Jul 1992 | 25 May 1994 | British | - |
| Gregory George Harvey | Director | 28 Jul 1992 | 7 Aug 1993 | Australian | 87 years |
| Ian Guy Stewart Hartigan | Director | 28 Jul 1992 | 31 Aug 1993 | British | 93 years |
| Jean Baptiste Michel Renard | Director | 1 Feb 2003 | 1 Aug 2006 | French | 65 years |
| Joao Manuel Rocheta | Director | 24 Apr 2003 | 1 Apr 2008 | Portuguese | 79 years |
| John Aitkin Gray | Director | 26 May 1994 | 1 Sept 1994 | British | 84 years |
| John Gordon Sinclair Buchanan | Director | 26 May 1994 | 31 Aug 1995 | British | 83 years |
| Julian John Watts | Director | 1 Sept 1995 | 23 May 1997 | New Zealand | 87 years |
| Kamuran Yazganoglu | Director | 12 May 2021 | 19 May 2023 | Turkish | 50 years |
| Koeno Siemons | Director | 1 Feb 2002 | 24 Apr 2003 | Dutch | 62 years |
| Mark Louis Noetzel | Director | 1 Dec 2001 | 1 Feb 2003 | American | 69 years |
| Michael Charles Buzzacott | Director | 26 May 1994 | 31 Aug 1995 | British | 79 years |
| Peter James Mather | Director | 10 Oct 2011 | 12 May 2021 | British | 66 years |
| Ralph Charles Alexander | Director | 15 Jul 1998 | 1 Aug 1999 | American | 71 years |
| Richard Turquand Jungius | Director | 15 Jul 1998 | 1 Feb 2002 | British | 73 years |
| Robert Carl Fearnley | Director | 1 Apr 2008 | 10 Oct 2011 | British | 63 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 3 Jun 2013 | British | 60 years |
| Terence Michael Thornton | Director | 3 Jun 2013 | 1 Feb 2021 | British | 63 years |
| Thim Poh Ling | Director | 16 Nov 1993 | 25 May 1994 | Singaporean | 88 years |
| Yasin Stanley Ali | Secretary | 19 Feb 2001 | 30 Jun 2010 | - | - |