| 501 | ORISSA ISPAT INDUSTRIES PRIVATE LIMITED - U27109OR1991PTC002952 |
| 502 | ORISSA SPONGE IRON AND STEEL LIMITED - L27102OR1979PLC000819 |
| 503 | ORISSA STEEL AND WIRE PRODUCTS PVT.LTD. - U27104OR1989PTC002287 |
| 504 | ORISSA STEEL LIMITED - U27104OR1996PLC004490 |
| 505 | ORISSA TUBES PVT LTD - U27203OR1980PTC000890 |
| 506 | ORISSA UTENSILS PRIVATE LIMITED - U27108OR1998PTC005269 |
| 507 | ORISSA WIRE ROPES LTD - U27104OR1989PLC002335 |
| 508 | ORISSA ZINC AND CHEMICAL INDUSTRIES PRIV ATE LIMITED - U27204OR1990PTC002672 |
| 509 | OSC STEEL PRIVATE LIMITED - U27100OR2011PTC013394 |
| 510 | OSHO ENTERPRISES PRIVATE LIMITED - U27320OR1996PTC004503 |
| 511 | P M SYNTHETICS MINERALS PRIVATE LIMITED - U27101OR1990PTC002638 |
| 512 | P.B.R. ENTERPRISES PRIVATE LIMITED - U27104OR2005PTC008072 |
| 513 | PACIFIC INTERNATIONAL PRIVATE LIMITED - U27107OR2004PTC007781 |
| 514 | PADMAVATI ISPAT AND MINERALS PRIVATE LIM ITED - U27102OR2003PTC007312 |
| 515 | PANESAR STEEL AND POWER LIMITED - U27104OR2005PLC008079 |
| 516 | PARADEEP ENGINEERS PRIVATE LIMITED - U27104OR1963PTC000454 |
| 517 | PAREMON CHEMICALS PVT LTD - U27204OR1970PTC000541 |
| 518 | PARMESWARI STRIPS PRIVATE LIMITED - U27109OR2012PTC015394 |
| 519 | PASHUPATI ISPAT PVT.LTD. - U27103OR1991PTC002708 |
| 520 | PASSARY MINERALS LIMITED - U27101OR1990PLC002639 |
| 521 | PATAMUNDA INDUSTRIES PRIVATE LIMITED - U27209OR2008PTC009816 |
| 522 | PATISONS PIPES PVT LTD - U27203OR1983PTC001209 |
| 523 | PATNAIK STEELS AND ALLOYS LIMITED - U27102OR2003PLC007368 |
| 524 | PAWANJAY SPONGE IRON LIMITED - U27102OR2000PLC006060 |
| 525 | PAWANSUT INFRASTRUCTURE PRIVATE LIMITED - U27109OR2006PTC009061 |