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| Sl.No. | Customer | Unit |
| I | Refinery Sector | |
| 1
|
Indian Oil Corporation Ltd. (IOCL)
|
|
| 2 | Bharat Petroleum Corporation Ltd.(BPCL) |
|
| 3 |
Hindustan Petroleum Corporation Ltd.
(HPCL) |
|
| 4 | Cochin Refineries Ltd. ( CRL ) |
|
| 5 | Madras Refineries Ltd. ( MRL ) |
|
| 6 | Bongaigaon Refinery and Petrochemicals Ltd. (BRPL) |
|
| 7 | Numaligarh Refinery Limited (NRL) |
|
| 8 | Reliance Petroleum Ltd. (RPL) |
|
| 9 | Essar Oil Limited Refinery Division |
|
| 10 | Mangalore Refinery & Petrochemical Ltd. (MRPL) |
|
| II | Petrochemical Sector |
|
| 1 | Indian Petrochemicals Corporation Ltd. (ICPL) |
|
| 2 | Maharashtra Gas Cracker Complex (MGCC) |
|
| 3 |
Southern Petrochemicals Industries Corpn Ltd. (SPIC) |
|
| 4 | National Organic Chemical Industries Ltd. (NOCIL) |
|
| 5 | Tamilnadu Petro Products Ltd. (TPPL) |
|
| 6 | Andhra Petrochemicals Ltd. (APL) |
|
| 7 | Haldia Petrochemicals Ltd. (HPL) |
|
| 8 | Gas Authority of India Ltd. (GAIL) |
|
| III | Oil & Gas |
|
| 1 | Oil and Natural Gas Corporation Ltd. (ONGC) |
|
| 2 | Oil India Ltd. |
|
| IV | Fertilizer Sector | |
| 1 |
Fertilizer Corporation of India (FCI) |
|
| 2 | Neyveli Lignite Corporation Ltd. (NLC) |
|
| 3
|
Hindustan
Fertilizer Corporation Ltd. (HFCL)
|
|
| 4
|
National
Fertilizers Ltd. (NFL)
|
|
| 5 |
Rashtriya
Chemicals & Fertilizers Ltd. (RCF) |
|
| 6 | Sourthern Petrochemicals Ltd. (SPIC) |
|
| 7 | Gujarat Narmada Valley Fertilizers Co. (GNFC) |
|
| 8 | Gujarat State Fertilizers Co. (GSFC) Ltd. |
|
| 9 | Shriram Fertilizers & Chemicals (SFC) |
|
| 10
|
Indian
Farmers Fertilizer Co-operative Ltd. (IFFCO)
|
|
| 11 | Mangalore Chemicals and Fertilizers Ltd. (MFCL) |
|
| 12 | Indian Explosives Ltd. (IEL) |
|
| 13 | Indo Gulf Fertilizers and Chemicals Corpn Ltd. |
|
| 14 | Fact Engineering and Design Organisation (FEDO) |
|
| 15 |
Fertilizers & Chemicals Travancore (FACT) Udyogamandal |
|
| 16 | Coromandel Fertilizers Ltd. (CFL) |
|
| 17 | Krishak Bharati Co-operative (KRIBHCO) |
|
| 18 | Deepak Fertilizers Ltd. |
|
| 19 | Nagarjuna Fertilizers and Chemicals Ltd. (NFCL) |
|
| 20 | Oswal Chemicals and Fertilizers Ltd. (OCFL) |
|
| 21 | Chambal Fertilizers Ltd. |
|
| 22 | Madras Fertilizers Ltd. (MFL) |
|
| 23 | Tata Chemicals & Fertilizers Division |
|
| V | Steel and Matallurgical Sector | |
| 1 | Durgapur Steel Plant (DSP) |
|
| 2 | Rourkela Steel Plant (RSP) |
|
| 3 | Visakha Steel Plant (VSP) |
|
| 4 | Tata Iron & Steel Co. Ltd. (TISCO) |
|
| 5 | Bokaro Steel Plant (BSP) |
|
| 6 | Madhya Pradesh Iron & Steel |
|
| 7 | Indian Iron & Steel Co. (IISCO) |
|
| 8 | Viswaswarayya Iron & Steel Ltd. (VISL) |
|
| 9 | Jindal Strips |
|
| 10 | Bellary Steels & Alloys Ltd. |
|
| 11 | National Aluminium Company Ltd. (NALCO) |
|
| 12 | Bharat Aluminium Company Ltd. (BALCO) |
|