This CCS-欧美AV Young Chemists Summit 2021 is initiated from our successful long-term collaboration with Chinese Chemical Society and the celebration of the collaboration agreement updated and signed off this year. We are delighted to co-organize the exciting event with Chinese Chemical Society, by bringing CCS-欧美AV Young Chemists Award winners and 欧美AV journal Lectureship winners together, to recognise the achievements of individuals and to dedicate to the latest development in chemical sciences.