A total of 43 SS9 and 173 SS9G 6400hp Co-Co electrics were built for fast passenger work by Zhuzhou between 1998 and 2006. The two variants look quite different but are similar technically. Both variants can be found working various routes from from Beijing and in the north-east.
- C2 Class NG 0-8-0
- ET7 Class 0-8-0T
- GJ Class 0-6-0T
- JF Class 2-8-2
- JS Class 2-8-2
- KD6 Class 2-8-0
- QJ Class 2-10-2
- RM Class 4-6-2
- SL6 Class 4-6-2
- SY Class 2-8-2
- XK13 Class 0-6-0T
- YJ Class 2-6-2
- BJ Class
- DF4, DF4A, DF4B Class
- DF4C Class
- DF4D, DF4DD Class
- DF5, DF5B, DF5D Class
- DF7, DF7B/C/D/F Class
- DF7G Class
- DF8 Class
- DF8B Class
- DF11 Class
- DFH3 Class
- GKD1, GKD1A Class
- HXD3B/3C/3D Class
- SS3, SS3B Class
- SS4, SS4G Class
- 37E Class
- ED85 Class
- EL1 & EL2 Class
- ZG100 & ZG150 Class
- Narrow Gauge Electrics
- NYJ1, NZJ1, NZJ2 Class