Mizushima Rinkai Railway

The company took over operation of three former Kurashiki City Transportation Bureau lines in 1970.

It mainly transports freight for the industrial area around the Port of Mizushima, but also operates a passenger service on the Mizushima Main Line.

[3] The 11.2 km Mizushima Main Line (水島本線) between Kurashiki-shi, Mitsubishi-jikō-mae, and Kurashiki Freight Terminal opened in 1943 to serve an aircraft factory.

The 3.6 km freight-only Kōtō Line (港東線) between Mizushima and Higashi-Mizushima, and the 0.8 km freight-only Nishi-Futō Line (西埠頭線) between Mitsubishi-Jikō-Mae and Nishi-Futō both opened in 1962.

[4] CTC signalling was commissioned between Kurashiki and Mizushima in 1971, and the passenger service was extended to Mitsubishi-Jikō-Mae the following year.