Xinjiang Production and Construction Corps Transportation Agency planned to develop Yining To Alaer Railway Project, in Yining, Xinjiang, China. Consortium of China Railway No. 3 Engineering Group, China Railway First Group Co. Ltd., China Railway Major Bridge Engineering Group Co., Ltd and The Electrification Engineering Co Ltd Of The Third Engineering Group Co Ltd Of China Railway and Consortium of China Railway 14th Bureau Group Co., Ltd, China Railway Construction Electrification Bureau Group Co Ltd and Xinjiang Beixin Road & Bridge Group Co Ltd were s1 and s2 construction contractors of the railway from Aksu to Alaer respectively. China Railway First Survey & Design Institute Group and Xinjiang Railway Survey and Design Institute Co Ltd were designers. China Railway Urumqi Group Co Ltd was the construction contractor. China Railway Corp was the EPC contractor. The project covered the construction of a 346.88 km railway from Yining to Alaer, including a 19.9 km tunnel and a 21.8 km tunnel. The speed was 120 km/h. The railway from Aksu to Alaer was 114.639 km. The railway from Aksu to Alaer was an important part of the whole railway, including 4 stations and 49 bridges, with the construction period of 425 days. The main technical standard was National Railways Class II single-line internal combustion traction. The project was to drive the construction of the Belt and Road Economic Belt and the China-Pakistan Economic Corridor.