On June 15, the "Environmental Impact Report on the New Daton–Yuanping Railway Passenger Dedicated Line" was published in its entirety.

[3] In July, the Shanxi Provincial Development and Reform Commission approved the "Feasibility Study Report on the New Datong–Yuanping Railway Passenger Dedicated Line".

[4] In April 2017, the Shanxi Provincial Development and Reform Commission approved the "Preliminary Design of the New Datong-Yuanping Railway Passenger Dedicated Line", and Daixian West Station was relocated from the territory of Yuanping City to the territory of Daixian County.

[5] In April 2018, the Datong-Yuanping HSR announced the completion of the environmental impact report of the changes.

[7] On 27 December, the National Development and Reform Commission of the People's Republic of China approved the "Feasibility Study Report on the New Jining-Datong-Yuanping Railway".

[13] On 28 September 2024, track laying for the entire line was completed (excluding the Hengshan Tunnel).

[17] On 26 November, the entire Ji-Da-Yuan high-speed railway line entered the operational test phase.