The is a freight railway company in à Âfunato, Iwate, Japan. This is one of the oldest third sector (half public, half private) railway operator in the country, founded in 1932. Its group also operates bus lines. It also had a passenger service until 1992. The line mainly transports limestones from the mine to Taiheiyà  Cement à Âfunato Factory.
The Iwate Development Railway started construction of a 6km line to Hikoroichi () in 1941, but work was suspended as a result of the Pacific War. Work recommenced after the war and the line opened in 1950, and was extended 4km to Iwate-Ishibashi in 1960. A 2km freight-only line to Akasaki () opened in 1957. The passenger service ceased in 1992, and the lines are now freight-only.