 By the end of 1864 through operation between the Swansea Vale Extension and the Llanelly Railway was established at Brynamman, and the two lines formed a significant through route for goods traffic from Swansea to Liverpool.In May 1864 a passenger service to Brynamman was established on the Swansea Vale line.The Llanelly company decided to start its own passenger service to Brynamman, extending the existing Garnant branch service.