27 November 2019, at 14:30 hrs., Assoc. Prof. Dr. Kitikorn Charmondusit, Acting Vice President for Environment and Sustainable Development, as the ceremony chairperson, presented certificates to the 19 participants representing the environmental sectors of government bodies and private sector organizations in 18 countries in Africa, Asia, Europe, and South America, and delivered a closing speech for the international training on “Waste Management and Wastewater Treatment for Sustainability”. In the event, Assoc. Prof. Dr. Suvaluck Satumanatpan Deputy Dean for Research, Policy and Planning, Faculty of Environment and Resource Studies, also gave a verbal report of the training course that was organized at the Faculty of Environment and Resource Studies, Mahidol University, from 6-27 November, 2019, with the support of Thailand International Cooperation Agency (TICA), with Assist. Prof. Dr. Achara Ussawarujikulchai as the training course director. The closing ceremony was held at Professor (Special) Lek Moncharoen Conference Room, Badhanatala Environment Building, Faculty of Environment and Resource Studies, Mahidol University.