On 27 November 2014, Express Rail Link ordered from CRRC Changchun six new 4-car trainsets to cater to the ridership growth of both KLIA Ekspres and KLIA Transit services. CRRC's Zhuzhou plant had already supplied rolling stock to the rapidKL Ampang Line and KTM Komuter beforehand. Of the six new trains, two will be used for KLIA Ekspres and four for KLIA Transit. Delivery of the six new trains will be made progressively from May 2016 onwards, after which testing will be done. ERL expects all six trains to be operational by November 2016.