Company purchase the coal from below mentioned mines :-
- Western Coal Fields (Ltd.), Nagpur (WCL)
- South Eastern Coal Field Ltd., Bilaspur (C.G.) (SECL)
- Mahanadi Coal Fields Ltd., Sambhalpur (Orissa) (MCL)
- Central Coal Field Ltd., Ranchi, Jharkhand (CCL)
- Northern Coalfields Limited.(NCL)