The 28th Meeting of the Regional Power Trade Coordination Committee (RPTCC-28) was held on 26ꟷ27 August 2021 via web-based conferencing. The meetings discussed (i) summary of key results of the Greater Mekong Subregion (GMS) study on harmonization of technical performance standards and grid codes and regulatory regime, conducted under Asian Development Bank’s (ADB) technical assistance (TA) on Harmonizing GMS Power Systems to Facilitate Regional Power Trade; (ii) update on regional connectivity activities in Asia as discussed by UNESCAP); (iii) country updates on the latest country power sector development, impact of the COVID-19 pandemic on demand and supply, and on the revenue of utilities; and (iv) regional investment framework for the GMS including program updates.