| 4501 | M Zulfqar Block Factory | Sargodha |
| 4502 | Yousaf Cement Filtre Factory | Sargodha |
| 4503 | Muhammadi Bricks Company | Sargodha |
| 4504 | Chaudhry Bricks Company | Sargodha |
| 4505 | Brothers Bricks Company | Sargodha |
| 4506 | New Awan Bricks Company | Sargodha |
| 4507 | Kisan Bricks | Sialkot |
| 4508 | Pakistan Marble Factory | Sialkot |
| 4509 | Heera Marble Factory | Sialkot |
| 4510 | Ali Bricks Co Jethal Chakwal | Chakwal |
| 4511 | Subhan Allah Marbles | Sahiwal |
| 4512 | Haq Bahoo Marble Factory | Sahiwal |
| 4513 | Ali & Ahmad Bricks Company, | Multan |
| 4514 | Al-Kutab Bricks | Vehari |
| 4515 | Stonex Granite & Marble. | Lahore |
| 4516 | Taj Sarkar Bricks Company | Bahawalnagar |
| 4517 | Malik Brothers Bricks Company | Bahawalpur |
| 4518 | Bismillah Bhatta Khasht | Dera Ghazi Khan |
| 4519 | Star Brick Company | Gujranwala |
| 4520 | Hafiz Brick Company | Gujranwala |