CRH2 Electric Multiple Unit EMU with a speed of 200 km/h, which is researched and developed by CSR Qingdao Sifang Locomotive & Rolling Stock Co., Ltd., ran on the red travel line—Xi’an-Yan’an Line since July 1, 2012, shortening the time from 5 hours to 2.5 hours. 

To ensure the opening of red travel line, CSR Qingdao Sifang Locomotive & Rolling Stock Co., Ltd. sets up an after-sale service station in Yan’an to guarantee running of and provide service for EMUs. 

CRH2 EMUs researched and developed by CSR Qingdao Sifang Locomotive & Rolling Stock Co., Ltd. run on the Wuhan-Yichang Line and Longyan-Xiamen Line of EMU also opened on July 1, 2012 for the first time, 4 EMUs on Wuhan-Yichang Line and 2 on Longyan-Xiamen Line. 

Statistics show that there are 549 standard EMUs manufactured by CSR that have been put into operation, accounting for 58.6% of the total number.