Editing MTR (section)

==== Rotem EMU (K-trains) ====
{{Main|MTR Rotem EMU}}

The K-stock was built jointly by [[Mitsubishi Heavy Industries]] and [[Hyundai Rotem]] and first put into service on the Kwun Tong line.<ref>{{cite web
|url=http://www.rotem.co.kr/eng/Business_Activities/RollingStock/Emu/EMU_hongkong.asp
|archive-url=https://archive.today/20070312020430/http://www.rotem.co.kr/eng/Business_Activities/RollingStock/Emu/EMU_hongkong.asp
|url-status=dead
|archive-date=12 March 2007
|title=MTRC TKE C651 EMU, Hong Kong
|publisher=Rotem Company
|access-date=8 March 2007}}</ref> These were eventually transferred to the Tseung Kwan O line in 2009. Subsequently, in 2006, four additional sets joined the Tung Chung line to cope with the increasing passenger traffic.<ref>{{cite web
|url=http://www.rotem.co.kr/eng/board/read.asp?seq=13&page=1
|archive-url=https://archive.today/20070312020347/http://www.rotem.co.kr/eng/board/read.asp?seq=13&page=1
|url-status=dead
|archive-date=12 March 2007
|title=New trains ordered for Tung Chung line, Hong Kong
|publisher=Rotem Company
|access-date=2 April 2007}}</ref> K-Stock trains have come under criticism when they were first put into service due to delays and door safety issues.<ref name="review0203legco">{{cite web
|url=http://www.legco.gov.hk/yr02-03/english/panels/tp/papers/tp1017cb1-540-1e.pdf
|title=Review of MTRC Services and Incidents
|publisher=Hong Kong Legislative Council
|access-date=6 November 2007
|archive-date=18 February 2012
|archive-url=https://web.archive.org/web/20120218231748/http://www.legco.gov.hk/yr02-03/english/panels/tp/papers/tp1017cb1-540-1e.pdf
|url-status=live
}}</ref> Along with other service reliability issues, there have been incidents where passengers have been injured by its doors, leading to the MTRCL "minimising the number of Korean trains for passenger service until a higher reliability of the systems concerned is achieved".<ref name="review0203legco" />