First established in 1971 in Cambridge, UK, the scope of the COMET meetings is to discuss the recent progress in our understanding of the interactions and energy transfer that are central to various chemical and physical processes. While the initial studies focused on the energy transfer in small molecules in the gas-phase, the field has now grown investigating complex processes that happen in the condensed phase, at interfaces in heterogeneous environments, and biological systems. In 2015 COMET became iCOMET, held for the first time in China, and the conference now rotates between Europe and Asia. The idea of the iCOMET is to enhance interactivity of Asian and European researchers who work on molecular interactions and dynamics that are at the root of all important complex phenomena. Besides the focus on the Asian and European participants, the conference aims to bring together scientists from all over the world to discuss the state-of-the-art experimental and theoretical studies of the key dynamical events in molecular systems.