Prof. Oki is a Special Advisor to the President, and a Professor at Graduate School of Engineering, The University of Tokyo. His previous academic positions include Associate Professor with the Institute of Industrial Science, The University of Tokyo and Associate Professor with the Research Institute for Humanity and Nature. He was also affiliated as the Senior Vice-Rector, United Nations University, Japan, and an Assistant Secretary-General, United Nations for 2016-2021.

Raghava is a Senior Water Supply and Sanitation Specialist with the World Bank. He has over 20 years of experience in urban and rural water supply, natural disaster risk mitigation and urban infrastructure. Based in Fiji, Raghava is working on the World Bank's recently approved South Tarawa Sanitation Project in Kiribati. 

Sharon Lesa is the Wastewater Engineer for the Samoa Water Authority (SWA). Sharon’s time at SWA is mostly spent on water and wastewater projects ranging from design, planning, process control, and smart systems to improve service delivery. Sharon graduated from the University of Sydney with a bachelor’s degree in Chemical and Biomolecular Engineering (Hons).