**Institute of Mathematical Statistics (USA)**

**International Statistical Institute (ISI)**

Vice President

Aug-09 to Aug-11

**Singapore Mathematical Society**

Assistant Treasurer

2016, 2011, 2010

Honorary Treasurer

2012 to 2015

**Council of Association for Symbolic Logic**

Member, Executive Committee

2005 to 2009

**Singapore Mathematical Society**

**Singapore Mathematical Society**

Honorary Treasurer

2010, 2009, 2003, 2002

**Singapore Mathematical Society**

**Singapore Mathematical Society**

Honorary Secretary

2000 to 2002

**Singapore Mathematical Society**

Committee Member

2015, 2011

Assistant Editor

1998 to 2000

Committee Member

1996 to1997

**Singapore Mathematical Society**

**Singapore Mathematical Society**

**Singapore Mathematical Society**

Honorary Secretary

2010 to 2013

**Singapore Mathematical Society**

Vice President

2001 to 2003

Assistant Secretary

1996 to 1998

**Singapore Mathematical Society **

**Singapore Mathematical Society**

Vice President

1998 to 2000

**South East Asian Mathematical Society (SEAMS)**

**Singapore Mathematical Society**

Vice President

2012 to 2016

Honorary Secretary

2006 to 2009

Assistant Editor

2002 to 2004

**Singapore Mathematical Society **

Assistant Secretary

2001 to 2002

**Singapore Mathematical Society**

Vice President

2013 to 2016

**Singapore Mathematical Society**

Assistant Secretary

2014 to 2016

Committee Member

2012 to 2013

**Singapore Mathematical Society **

Assistant Editor

2000 to 2001

**East Asia Committee on Logic, a committee of the Association for Symbolic Logic**

**Singapore Mathematical Society **

Honorary Treasurer

2006 to 2007

**Singapore Mathematical Society **

Honorary Treasurer

2005, 2004, 2001, 2000

**Singapore Mathematical Society **

Honorary Treasurer

1998 to 1999

**Singapore Mathematical Society**

Vice President

2005 to 2008

Honorary Treasurer

1996 to 1997

**Southeast Asian Mathematical Society**

Vice President

2012 to 2013