This publication explains why Indonesia, Malaysia, and Thailand need to ramp up cooperation to boost their special economic zones (SEZ) and spur sustainable growth. Mapping out and assessing the economic performance of SEZs across the subregion, it highlights the threats they face from factors including growing competition for foreign investment, international trade disputes, and the rise of digital technologies. The publication stresses the need for policymakers and stakeholders to intensify their strategic collaboration in order to make their SEZs more competitive. Against the backdrop of COVID-19, it details a range of practical steps designed to increase trade, create jobs, and build economic resilience across the three countries.