International Institute for Sustainable Development

Institut international du développement durable


Associate & Senior International Law Advisor

Howard Mann was appointed as an Associate and Senior International Law Advisor to IISD in 1998. From 2003-2009, he initiated and managed IISD’s Investment and Sustainable Development program. Howard has worked with colleagues in advising and training government officials from over 80 developing countries on international investment law issues, investment treaty negotiations, and the development of sound investment policy from a sustainable development perspective.

Howard was the lead author of IISD's Model International Agreement on Investment for Sustainable Development, significant portions of which have been adopted in multiple international investment treaties since it was published in 2005. He represented IISD in its precedent-setting amicus curiae intervention in the NAFTA case between Methanex Corp. v. the United States, the first international investment arbitration to allow interventions by civil society organizations. More recently, Howard was a leading participant in the preparation and drafting of the first internationally recognized model contract on mining from a sustainable development perspective, the Model Mine Development Agreement of the International Bar Association. Howard has served on two Government of Canada advisory committees on international trade and investment law, a special expert panel for the International Commission of Jurists on corporate complicity in human rights violations, advised on the development of the UN Principles on Business and Human Rights.

From 1988 to 1993, Howard was a lawyer for the Government of Canada and was actively involved in the negotiation of several international environmental agreements, including climate change and the NAFTA environmental agreement. He also participated in several cases heard in the Supreme Court of Canada. From 1993-1999, Howard maintained a full-time practice in international law, where his clients included the government of Canada, international organizations, national and international non-governmental organizations. Howard has been an Adjunct Professor of international law at the University of Ottawa’s Faculty of Law, is widely published in his areas of specialization, and is a frequent speaker at international conferences. 



  • Member, International Bar Association.


  • PhD (1988): London School of Economics.
  • Master of Laws LL.M. (1984): London School of Economics.
  • Bachelor of Civil Law (1982): McGill University.


  • English
  • French
The IISD Guide to Negotiating Investment Contracts for Farmland and Water
Paper: Carin Smaller, Howard Mann, Nathalie Bernasconi-Osterwalder, László Pintér, Matthew McCandless, Jo-Ellen Parry (October 29, 2014)
Webinar with Howard Mann on the Comprehensive Economic and Trade Agreement (CETA)
September 19, 2014

A June 6, 2014 webinar featuring IISD's Senior Law Advisor Howard Mann, who presented an analysis based on the latest leaks of the CETA Investment Chapter (April 4 text) and In...

Bilateral Investment Treaties, Mining and National Champions: Making it work
Paper: Aaron Cosbey, Howard Mann, Maxine Cunningham (July 10, 2014)
Model Mining Development Agreement - Transparency Template
Paper: Howard Mann, Luke Danielson (September 10, 2013)
The Canada-China investment treaty sleight of hand
Commentary: Howard Mann (January 9, 2013)
Investment Treaty News Quarterly, Volume 3, Issue 1, October 2012
Newsletter: Damon Vis-Dunbar, Jason Yackee, Joost Pauwelyn, Elisabeth Tuerk, Faraz Rojid, Howard Mann, Lise Johnson, Patricia Ngochua, Larisa Babiy, (October 29, 2012)
Investment Treaty News Quarterly, Volume 2, Issue 1, October 2011
Newsletter: Damon Vis-Dunbar (Editor), Lorenzo Cotula, Howard Mann, Carin Smaller, Andrea Shemberg, Kyla Tienhaara, Lise Johnson, Fernando Cabrera, Vyoma Jha (September 27, 2011)
Investment Treaty News Quarterly, Volume 1, Issue 4, July 2011
Newsletter: Damon Vis-Dunbar, Matthew Porterfield, Christopher Byrnes, Kyla Tienhaara, Patricia Ranald, Craig Garbe, Howard Mann, Lawrence Herman, Marc Maes, Lise Johnson (July 5, 2011)
The realities of sustainability
Commentary: Howard Mann (October 18, 2010)
Clean Energy Investment: Policymakers' Summary
Paper: Aaron Cosbey, Jennifer Ellis, Mahnaz Malik, Howard Mann (August 20, 2008)
Clean Energy Investment: Project synthesis report
Paper: Aaron Cosbey, Jennifer Ellis, Mahnaz Malik, Howard Mann (August 20, 2008)
IISD Model International Agreement on Investment for Sustainable Development - Negotiators' Handbook
Book: Howard Mann, Konrad von Moltke, Aaron Cosbey, Luke Eric Peterson (April 26, 2005)
IISD Model International Agreement on Investment for Sustainable Development
Paper: Howard Mann, Konrad von Moltke, Aaron Cosbey, Luke Eric Peterson (April 26, 2005)
Comments on ICSID Discussion Paper, "Possible Improvements of the Framework for ICSID Arbitration"
Paper: Howard Mann, Aaron Cosbey, Luke Eric Peterson, Konrad von Moltke (December 15, 2004)
International Economic Law: Water for Money's Sake
Paper: Howard Mann (November 2, 2004)
Investment and Sustainable Development: A Guide to the Use and Potential of International Investment Agreements
Book: Aaron Cosbey, Howard Mann, Luke Eric Peterson, Konrad von Moltke (May 25, 2004)
The State of Trade and Environment Law 2003: Implications for Doha and Beyond
Book: Howard Mann, Stephen Porter (September 12, 2003)
Investment, Doha and the WTO
Paper: Luke Eric Peterson, Konrad von Moltke, Howard Mann, Aaron Cosbey (August 15, 2003)