15 May 2021 to Current

Minister for Trade and Industry

21 May 2011 to 14 May 2021

Minister for Health

1 April 2009 to 20 May 2011

Minister for Manpower

1 April 2008 to 31 March 2009

Acting Minister for Manpower

1 April 2008 to 31 March 2009

Senior Minister of State, Ministry of Manpower

1 October 2005 to 31 March 2008

Minister of State, Ministry of Education

1 October 2005 to 31 March 2008

Minister of State, Ministry of Manpower

31 May 2011 to 30 September 2015

Government Whip

11 July 2020 to Current

Chua Chu Kang GRC

11 September 2015 to 22 June 2020

Chua Chu Kang GRC

7 May 2011 to 24 August 2015

Chua Chu Kang GRC

6 May 2006 to 18 April 2011

Chua Chu Kang GRC

25 October 2001 to 19 April 2006

Holland-Bukit Panjang GRC

Special Select Committee on Nominations for Appointment as Nominated Members of Parliament

Member

14th Parliament, 1st Session

Committee of Selection

Member

12th Parliament, 2nd Session

Standing Orders Committee

Member

12th Parliament, 2nd Session

Committee of Selection

Member

12th Parliament, 1st Session

Standing Orders Committee

Member

12th Parliament, 1st Session

Standing Orders Committee

Member

11th Parliament, 2nd Session

Standing Orders Committee

Member

11th Parliament, 1st Session