FMG 9589 and 10590 on a loaded train at Boodarie, January 22, 2023. Twenty pairs, or forty waggons numbered 9551 slave and 10552 control, up to 9589 slave and 10590 control built by CRRC Qiqihar in 2021 with the CNR style body and yellow ends denoting dual rotary coupler waggons.