''The South Asia Subregional Economic Cooperation (SASEC) Program was established in 2001 by Bangladesh, Bhutan, India, and Nepal. Maldives and Sri Lanka followed in 2014, and Myanmar joined in February 2017. SASEC focuses on resolving various development constraints through regional cooperation among its members, thereby complementing shared national aspirations for inclusive and sustainable growth. The Asian Development Bank (ADB) is the lead financier and supporter of SASEC and serves as its secretariat. SASEC is project oriented and currently prioritizes transport, trade facilitation, and energy. The SASEC Operational Plan 2016–2025 delineates the program’s priorities, including multisector economic corridor development and a pipeline of projects.1 Since 2001, SASEC has implemented 49 regional investment projects totaling around $11 billion. In April 2017, the SASEC Vision document—SASEC: Powering Asia in the 21st Century—was launched at the SASEC Finance Ministers Meeting in New Delhi, India.2 This document identifies regional and subregional opportunities to harness natural and human resources, industrial potential, and infrastructure connectivity through regional cooperation. Because Myanmar joined SASEC only 2 months before the vision document was launched, it was not included in the original version. This chapter, which was prepared in close consultation with the Government of Myanmar and the private sector, updates the SASEC Vision document...''