To date, Singapore’s regionalization strategy has been applied in China, India, Indonesia and Vietnam through the establishment of industrial parks. The nexus between these ‘clones’ is the implantation of Singapore’s positive business ethos amidst more uncertain host environments. Leveraging on world-class infrastructure, efficiency and location-specific advantages, these industrial parks present themselves as low-cost investment enclaves. This paper focuses on the regional industrial development project assembled, administered and promoted by the sovereign national governments of Singapore and Vietnam. Using in-depth case studies, it examines the push-pull factors for firms with different structures. It finds that progress in this privileged foreign investment zone remains stymied by particular challenges and dependencies.