| Sewage Treatment Plant at Samail |
Min. of Regional Municipalities |
Khatib & Alami |
1998 |
| Sewage Treatment Plant at Nizwa |
Min. of Regional Municipalities |
Khatib & Alami |
1998 |
| Sewage Treatment Plant at Rustaq |
Ministry of Regional Municipalities & Environment and Water Resources |
Asie Etudes |
2005 |
| Upgradation of STP & Associates works at Masirah |
Ministry of Regional Municipalities & Environment and Water Resources |
Consulting Engineering Services |
2007 |