Eco-Industrial Parks from Strategic Niches to Development Mainstream: The Cases of China

China has implemented eco-industrial park (EIP) initiatives as a mainstream strategy of a circular economy since the turn of the new century. This paper presents the sustainable transition processes and outcomes of three EIP cases, Tianjin Economic and Technological Development Area (TEDA), Fuzhou Economic and Technological Development Area (FEDA) and the Xi’an High-Tech Zone (XHTZ). The cases uncovered four factors key to the transition of EIPs: technological trajectory dependency, spaces for experimentation, government as an enabler and regional embeddedness.