S-Bahn Berlin GmbH has signed a framework contract with the consortium of Stadler Pankow GmbH and Siemens for the delivery of up to 1,380 vehicles. A firm order was placed for the first 106 trains. The 85 four-section and 21 two-section trains have a high triple-digit million-euro order volume. S-Bahn Berlin, a subsidiary of Deutsche Bahn, plans to use the new trains on the Ringbahn lines (S 41 and S 42) as well as on the system's southeastern feeder lines S 47, S 46 and S 8. These lines comprise roughly one-third of the entire S-Bahn network in Berlin. The first ten vehicles will be ready to enter service as of 2020. Subsequently, all remaining vehicles will be delivered continuously to the Berlin system up to 2023. The vehicles will be manufactured and assembled at the Berlin plant operated by Stadler Pankow GmbH.