Input (grade 13): Then known as Mass Rapid Transit Corporation (MRTC) when it was incorporated on 6 August 1987, it was renamed as Singapore MRT Limited before taking on its current name, SMRT Trains, in the year 2004.
Output (grade 9): It was first known as Mass Rapid Transit Corporation (MRTC) when the company was founded in 6 August 1987. It was renamed Singapore MRT Limited before becoming its current name, SMRT Trains in 2004.