China is experiencing rapid and largescale urbanization, and the resulting local and global urbanenvironmental challenges are unprecedented. The ChineseGovernment has fully recognized these challenges and isaiming to promote more sustainable urbanization in line withthe objectives of the eleventh five year plan, which callsfor 'building a resource-conserving and environmentallyfriendly society'. Various initiatives are beingpursued to support this objective, both at the national andlocal levels. At the local level, cities have responded bydeveloping 'eco-cities', which aim to promote amore sustainable urbanization model. More than one hundredeco-city initiatives have been launched in recent years. Onesuch initiative is the Sino-Singapore Tianjin eco-city. Thepurpose of this report is to review the Sino-SingaporeTianjin Eco-City (SSTEC) project from a comprehensiveperspective with a view to achieving the following principalobjectives: (i) create a detailed knowledge base on theproject; (ii) provide policy advice on key issues,especially those related to the Global Environment Facility(GEF) project; (iii) estimate SSTEC's Greenhouse Gas(GHG) emission reduction potential; and (iv) contextualizethe project among the broader ecological urban developmentinitiatives in China. Broadening the World Bank'sengagement beyond the GEF was assessed as important giventhe project's complexity, and its potential to shedlight on China's sustainable urban development challenges