The AL-41ST-25 gas turbine engine developed by UEC-UMPO PJSC is being operated at the Arskaya CS (Gazprom Transgaz Kazan). The engine was created by order of Gazprom PJSC, an agreement on its development and production development was concluded in 2019.

As part of the agreement, the UEC-UMPO developed and manufactured a prototype engine, factory tests of which began in December 2023 at the UMPO production site in Ufa.