Rosoboronexport disclosed that China has ordered four Mi-171E helicopters during the MAKS 2017 airshow and these rotorcraft will be delivered in 2018.
By Dmitriy Pichugin [GFDL 1.2 or GFDL 1.2], via Wikimedia Commons
The same press release mentioned that four Klimov VK-2500 engines are being sold to China as well.