The ASEAN Taxonomy Board (ATB) was established to develop, maintain and promote a multi-tiered ASEAN Taxonomy that provides an overarching guide for all ASEAN Member States, complementing their respective national sustainability initiatives, and serves as ASEAN’s common language for sustainable finance. The ATB is established by the ASEAN Capital Markets Forum (ACMF), ASEAN Insurance Regulators’ Meeting (AIRM), ASEAN Senior Level Committee on Financial Integration (SLC), and ASEAN Working Committee on Capital Market Development (WC-CMD), under the auspices of the ASEAN Finance Ministers’ and Central Bank Governors’ Meeting (AFMGM). The 7th AFMGM on 30 March 2021 endorsed the establishment of the ATB and the development of a multi-tiered taxonomy that takes into account the region’s needs, as well as international aspirations and goals, and facilitate an orderly and effective transition towards a sustainable ASEAN.