 Cooperation was planned from the very beginning, so LMB not only selected the same electrification system, but also contracted all operations to the Langenthal-Jura Railway.With the opening of the Solothurn-Niederbipp Railway ("Solothurn-Niederbipp-Bahn", SNB) on 9 January 1918, another connection to a metre-gauge railway was opened in Niederbipp.The SNB also sought contact with the LJB and entered into an operating contract, adopted the electrification system of the Langenthal-Jura Railway and ran individual trains to Oensingen.