i tried to get information regarding Engine but failed.. so this is just the pure guess. it could have PW150C or WJ-6C for test flight. as far as i remember, XAC applied for Engine in 2018 but got denied by the Canadian government in 2020. two years wasted here.
MA700 had another major problem. extensive reliance on western suppliers for critical components other than Engine.
what we have seen today, most likely with all indigenous components/parts. for AG-600 AVIC has to develop all related avionics , sensors and electronics.. this AG-600 project greatly helped MA700 in indigenous avionics like glass cockpit.
MA700 is to replace older MA60/MA600 series and target regional aviation and this airliner is suited for small island nations. Russia has too great demand for this type of aircraft.