The second section, a single-track non-electrified extension to East Hills, was opened on 19 December 1931 by the then-Minister for Local Government James McGirr in a ceremony at East Hills. Points to reverse trains were provided at Kingsgrove, and a passing loop was provided at Herne Bay. Services on this section were by CPH railmotor, supplemented by through steam trains from Central in peak hours. Some electric services from Kingsgrove operated through to St James station (the City Circle was not complete at that time), however most terminated at Tempe, connecting with Illawarra line services to and from the city. Complete through service commenced in 1937. The single line between Kingsgrove and East Hills was opened for electric services on 17 December 1939.