The East Rail line Metro Cammell EMU () is a model of electric multiple unit built by Metro-Cammell for the original Kowloon–Canton Railway (now the East Rail line) in Hong Kong. The 29 sets are owned by and were originally operated by the Kowloon-Canton Railway Corporation (KCRC). They have been operated by MTR Corporation (MTRC) after it merged with KCRC in 2007. Although another set of EMU trains from the same manufacturer operate on some of MTR's own lines, there are some significant differences between the two models, with the Metro Cammell EMUs of the original MTR being known as the "Modernization Train".