Commissioner of IR, Singapore

First President of CATA, October 1979 - October 1982

President of CATA 1982 - 1984

President of CATA 1984-1985

Commissioner of Inland Revenue, New Zealand

President of CATA November 1985 -l August 1988

President of CATA 1994 to 1997

President of CATA 1997 to 2000

Former Commissioner of Taxes, Belize

President of CATA 2000 to 2003

Former Commissioner of Taxes, Kenya Revenue Authority

President of CATA from 2003 to 2006

Former Commissioner of Taxes, Barbados

President of CATA 2006 - 2009

Director General, Mauritius Revenue Authority

President of CATA 2009 - 2012

Current Chairman of CATA's Management Committee

Chief Executive Officer/Director General, Inland Revenue Board of Malaysia

Current President of CATA

Director, Provincial & International Relations Division, Revenue Canada

First Chairman of CATA's Management Committee, October 1979 - October 1982

Asst. Secretary, International Tax Policy Division, Inland Revenue, UK 

Chairman of CATA's Management Committee October 1982 - May 1983

Assistant Secretary, International Division, Inland Revenue

Chairman of CATA's Management Committee 1983 to 1985

Asst. Director, International Division of the UK Inland Revenue

Vice Chairman of CATA 's Management Committee 1986 - 1994

Commissioner of Taxes, PNG

Chairman of CATA's Management Committee 1991 to 1995

Senior Policy Adviser, International Division of HMRC until 2006

Chairman of CATA's Management Committee from 1995 to 1997,  Vice Chairman from 1994 to 2006 and web site administrator from 2006 to date.

Chairman of CATA's Management Committee 1997 to 2000

Commissioner of Taxes, India

Chairman of CATA's Management Committee 2000 -2003

Director, Provincial & International Relations Division of Revenue Canada

Member of CATA's Management Committee 1988 - 1995

Former member of CATA's Management Committee

Former Commissioner of Ghana Internal Revenue Service

Former member of CATA's Management Committee

Vice President of Ghana 1997 - 2001

President of Ghana 2009 - 2012

Wikipedia entry

Commissioner of Taxes, Malta

Former Member of CATA's Management Committee

Commissioner General, Kenya

Former Member of CATA's Management Committee

Commissioner of Taxes, Zambia

Former Member of CATA's Management Committee

Commissioner General, Papua New Guinea

Member of CATA's Management Committee

Former Member of CATA's Management Committee

Former Member of CATA's Management Committee

Assistant Commissioner, Ghana Revenue Authority,

Formerly Commissioner of Inland Revenue and Fiscal Adviser, Finance Ministry, Sri Lanka

Executive Director of CATA November 1984 - December 1996

Executive Director of CATA January 1997 - August 2010

Executive Director of CATA August 2010 to August 2013.

Executive Director of CATA from August 2013 to date.

Commissioner General, Ghana Revenue Authority

Commissioner of Taxes, Tanzania

Senior Policy Advisor, HMRC, UK

Vice Chairman of CATA's Management Committee from 2006 - ?

Senior Policy Adviser, International Division, HMRC

Vice Chairman of CATA's Management Committee 2006

Senior Policy Adviser, International Division, HMRC

Former Vice Chairman of CATA's Management Committee

Internation Relations Specialist, HMRC

Current Vice Chairman of CATA's Management Committee