Coal train from the Ogmore Valleys passing Tondu in 1962
It hence had an extensive set of railway workshops, and was also the junction access point for the Tondu Ironworks.
The ironworks shut from 1895 onwards, but the previous developments meant that it remained an important junction with the installation of a wagon works for the collieries in the area. After the Beeching Axe in the 1960s, and the closure of the Blaengarw and International collieries in the late 1980s, the station and lines were greatly rationalised. Tondu station was closed on 22 June 1970, and was reopened on 28 September 1992.British Rail and Mid Glamorgan County Council reopened the line.
The current passing loop is still controlled by the former Tondu junction signal box, which manually controls the line using semaphore signals. As well as the former Maesteg Line, the former Port Talbot Railway and Docks Company line exists as a freight-only by-pass line to Margam.