 The first batch of CRH2E, CRH2-121E - CRH2-126E, came into service on Beijing-Shanghai railway on December 21, 2008.On 23 July 2011, one sleeper coach on CRH2-139E trainset has been derailed in the 2011 Wenzhou train collision, together with CRH1-046B.The rest of CRH2Es were deployed on Beijing–Guangzhou–Shenzhen–Hong Kong High-Speed Railway since January 2015, operating overnight sleeper trains between Beijing and Guangzhou (including some trains to Shenzhen).