one-north MRT Station (CC23) is an underground Mass Rapid Transit station on the Circle Line located in Queenstown, Singapore. The station serves the hub for Biopolis and Fusionopolis, as well as the Singapore campuses of both ESSEC and INSEAD, two top international business schools. The station is located in the basement of Phase 1 of the Fusionopolis. one-north MRT Station is the only MRT station in Singapore to have a name starting with an uncapitalised letter.