Main Negotiator of Japanese Government for UN Sendai Framework for DRR from 2014 to 2015.
Member of Intergovernmental Expert Working Group on Indicators and Terminology relating to Disaster Risk Reduction for UNDRR
Former Members of the Executive Committee of the Warsaw International Mechanism for Loss and Damage associated with Climate Change Impacts, UNFCCC
OECD Advisory Group Member on Assessing and Measuring Resilience
Advisor for the Strategic Committee for Water Resources Management of Royal Thailand Government, Chaired by Prime Minister & Deputy Prime Minister
Disaster Risk Reduction and Reconstruction Policy Advisor.
He joined most of the PDNA survey and recovery policy dialogue around the world Mega Disasters, such as Sumatra Tsunami 2004, Central Java Earthquake 2006, Manila Ondoy Flood 2009, Pakistan Indus Flood 2010, Thailand Flood 2011, Philippines Typhoon Yolanda 2013, Nepal Earthquake 2015 and so on.