| 521 | Rockwell Enterprises. | | Sialkot |
| 522 | Karachi Tube Mills Pvt Ltd | | Sheikhupura |
| 523 | Rie Raaziq Industries Enterprises Private Limited | Sundar Industrial Estate | Lahore |
| 524 | Qadri Brother'S | | Lahore |
| 525 | Rajput Steel Industry | | Gujranwala |
| 526 | Barkat Steel Mills 1 | | Lahore |
| 527 | Jamal Steel Re-Rolling Mills (Pvt) Ltd. | | Lahore |
| 528 | S.H Steel Mill | | Lahore |
| 529 | Haji Lateef Foundry | | Faisalabad |
| 530 | Ashiq Sanitary Fittings | | Gujranwala |
| 531 | G. R. Metal Works | | Gujranwala |
| 532 | Anmool Steel Re Rolling Mill | | Sheikhupura |
| 533 | Mian Wire Works | | Lahore |
| 534 | Amin Metal Industries | | Lahore |
| 535 | Sabir Body Maker | | Kasur |
| 536 | Pak Pipe Steel Industries (Pvt) Ltd | | Gujranwala |
| 537 | Sajjad Zafar Metal Works | | Gujranwala |
| 538 | Mughal Steel Decorative | | Sialkot |
| 539 | Punjab Concast Steel Mill | | Sheikhupura |
| 540 | Adeel Impax | | Gujranwala |