The United Launch Alliance (ULA), a joint Boeing-Lockheed Martin venture providing rocket launch services to the US government, uses the Russian RD-180 rocket engines to power the Atlas V launch vehicles into space.
"People are working, people have certain tasks. Then, all of the sudden, come the sanctions that not only interrupt business, they interrupt the common useful cause. Of course, they [ULA] are also displeased," Ekaterina Zhdanova said.
The discontent of Energomash, that produces the engines, and the ULA, is "quite explainable as the people [in these companies] are actually working on something," Zhdanova concluded.
The Russian-built RD-180, the successor to the Soviet RD-170, was first installed on a US Atlas III launch vehicle in 2000. It is now routinely used on Atlas V carrier rockets.