Dr. Dwi Hantoko is an Assistant Professor in the Department of Chemical Engineering at Institut Teknologi Bandung, in Indonesia. He was previously a PhD researcher at the Interdisciplinary Research Center for Refining and Advanced Chemicals, King Fahd University of Petroleum and Minerals, Saudi Arabia. He obtained his PhD in Chemical Process Equipment from Zhejiang University of Technology, China, in 2020. His research interests include thermochemical conversion of solid fuels into clean energy and value-added chemicals, syngas chemical looping for H2 production, process modelling and simulation for chemical processes, and catalyst evaluation. Dr. Hantoko has co-authored over 40 research papers in international journals, book chapters, and conference proceedings. He serves as a reviewer for international scientific journals and is an Associate Editor for Environment, Development and Sustainability.

Dr. Agamuthu Pariatamby FASc, is a Senior Professor at the Jeffrey Sachs Center for Sustainable Development at Sunway University (SU), Malaysia. With 49 years of experience in waste management, he is a Global top 2% Scientist in Environmental Sciences according to the Stanford University listings. He was also Associate Dean (Research and Postgraduate Studies) at the School of Interdisciplinary Sciences, SU, and is a Fellow of the Academy of Sciences, Malaysia, since 2014. He has been appointed as the High-Level End Foreign Expert for the Ministry of Science and Technology, China, and is also a Visiting Professor for Zhejiang University of Technology in Hangzhou, where he is also the Chairman of the International Consultant Committee on Waste to Energy (ICCWtE). Dr. Pariatamby has published 22 books and 34 book chapters, and has authored over 480 peer-reviewed articles, proceedings and invited papers. He has completed over 75 consultancy projects and supervised over 200 Master's degree students and 45 doctoral students.