Reminds me of when Russia offered China to join PAKFA as a joint partner, which China, having J-20 under development, politely declined, so Russia offered India to join PAKFA as a joint partner next. India, having lackluster Tejas and AMCA, jumped into that opportunity. Now we know how that went. China has always been capable of independent development, CR929 joint development was as much political as it was synergy of tech, China could have done it independent, it just chose to partner for efficiency, not because it's not capable.
Russia's inclusion in CR929 was basically Political strategy of COMAC and technological too.. both parties wanted to challenge Boeing/Airbus in wide body aircraft segment. Russia have strong political influence in Africa/Central Asia.
The delay occurred in this project mainly because of IP rights disputes.. but later on it has been sorted out but as we know, War interrupted again .. so COMAC decided to go alone due to various reasons..
Russia also offered Joint Engine venture for CR929. but COMAC declined and eventually decided to go alone again. so we have CJ-2000.
written agreement between both parties is still valid. but Russia's position have switched. Russia is providing composite wing to C929.. COMAC still consider Russia a valuable partner in this project ..
as per CEO's own statement, the experience we gained from C919 project is extremely valuable. based on this we can design and produce any type of civil aircraft.
--------------------------------------------------------------------------------------------------
PROGRESS in this project-
C929 wide body aircraft has entered in detailed design stage and Joint team from six different departments have assembled to review components/parts include propulsion..
C929 fuselage , mid fuselage , wing , tail , nose and landing gear contracts have awarded.. so far all are domestic suppliers. obvious Wing is from Russia..