| site link | phone | |
| Muscat Steel | 0 | |
| MUSCAT THREAD MILLS | [email protected] | 24446802 |
| National Aluminium Products Company | [email protected] | 24446453 |
| National Cans & Packing Industry | [email protected] | 24446650 |
| National Electrical Industries Co. L.L.C | 24454951 | |
| National Pharmaceutical Industries | [email protected] | 24449070 |
| National Plastic Factory | [email protected] | 24811689 |
| Nuhas Oman | [email protected] | 24449007 |
| Oman Cables Industry | [email protected] | 24446464 |
| Oman cement | [email protected] | 24437777 |
