Main owners: JR Freight (35.3%) and Kurashiki City (35.3%)
Mizushima Rinkai (Seaside) Railway's main business is freight to the Mizushima Port.
Freight only lines:
Mizushima Hon: The section Mitsubishijikōmae - Kurashiki Kamotsu (Freight) Terminal: 0.8 km
Kōtō: Mizushima - Higashi-Mizushima: 3.6 km
Nishi-Futō: Mitsubishijikōmae - Nishi-Futō: 0.8 km