The Green Climate Fund (GCF) adopted an ad hoc resource mobilization process at its inception, with the Board deciding to transition subsequently to a formal replenishment process. This document presents for Board consideration a proposed process for the first formal replenishment of the GCF, including an indicative timeline, structure and format, matters relating to governance and participation, inputs and strategic direction-setting, and financial components, among others. It includes in annex I a draft decision of the Board; in annex II a proposed process for the first formal replenishment; in annex III an indicative timeline; in annex IV a comparison with replenishment processes of other funds; and in annex V a budget proposal for conducting arrangements for the first formal replenishment.