ZHANG Muhui is an Assistant Professor at the Graduate School of International Studies, Pusan National University. Before his current position, he served as an assistant professor at the School of International Relations and Public Affairs, at Fudan University, and as a political affairs officer at the Trilateral Cooperation Secretariat among China, Japan, and South Korea (2011-2014). His research focuses on international relations in East Asia and theories and practices of East Asian regional cooperation. His current research project examines the mini-lateralism in Asia-Pacific and environmental diplomacy.