Regional industrial development projects - development packages assembled, administered and promoted by consortia of sovereign national governments - are new players in the global competition for foreign investments. Singapore's flagship projects in China have received much attention. Our paper reports on Singapore's lesser-known projects in Indonesia and Vietnam. The strategic intent of these transborder industrialization initiatives is to set in place a configuration for the city-state to restructure its domestic industries, and yet retain important linkages with production centers in low-cost environments. The effectiveness of this stratagem is evaluated from the perspectives of the tenant firms, as well as from Singapore's broader regionalization initiative. Our study finds that this policy gambit remains stymied by non-economic, socio-political complexities in the host environments.