This report covers the work of the Executive Committee of the Warsaw International Mechanism for Loss and Damage associated with Climate Change Impacts between 21 November 2020 and 31 July 2021. It contains information on organizational and procedural matters, including meetings and co-chairing arrangements, and on progress regarding institutional arrangements under the Executive Committee, in particular in relation to the newly established expert groups that advise the Committee, in addition to the two expert groups already in operation. The plans of action of the three new expert groups, developed by the groups and endorsed by the Committee during the reporting period, are contained in the annexes.