Major Coal Clients

Central Mine Planning & Design Institute (CMPDI)
Eastern Coalfields Ltd. (ECL)
Bharat Coking Coal Ltd. (BCCL)
South Eastern Coalfields Ltd. (SECL)
Singerani Collieries Co. Ltd. (SCCL)
Neyvelli Lignite Corporation Ltd.
Mineral Exploration Corp. Ltd.
Tata Steel Ltd.
Jindal Steel Works Bengal Ltd.
Electrosteel Castings Ltd.
Integrated Coal Mines Ltd.

Major Mineral Clients

Atomic Mineral Directorate
Hindustan Zinc Ltd.
Oil and Natural Gas Corp. Ltd.
ACC Ltd.
Odisha Mining Corp. Ltd.
Aryan Mining & Trading Corp. Ltd.

Major CBM Clients

Essar Oil Ltd.
Tata Steel Ltd.
Dart Energy
Deep Industries Ltd.
Reliance Industries Ltd.
Electrosteel Casting Ltd.
GEECL

Major Foreign Clients

RTZ (Australia) for Coal & Diamond
BHP Minerals (Australia) for Zinc & Iron Ore
Anglo American (United Kingdom) for Multi Metal
Phelps-Dodge (Canada) for Copper
Nissaku (Japan) for Paleogeological Studies