In 1970-1980, Lengiprotrans participated in the design of the Ekibastuz industrial area in the Kazakh SSR. This included the Ekibastuz GRES, the Vostochny and Bogatyrsky open-pit coal mines, and work on the track development of the hub.
In the industrial area, coal was loaded onto rolling stock for further transportation to coal-gathering stations. To this end, the institute has developed a project for the reconstruction of the Ekibastuz II station in combination with the external railway transport of the Vostochny open-pit mine.
As a result of the entire project, the idea of building a ring-type railway junction with two exits to the network of the Ministry of Railways and an exit to the Ekibastuz GRES was implemented.