Tenders of Office National Assainissement

The Carrying Out of Wastewater Sanitation Works in the Localities of Goubellat and Zahret Medien in the Governorate of Beja - Supply, Transport and Installation of Pipes and Ancillary Works & Civil Engineering and Pumping Station Equipment

The acquisition of protective clothing items to protect ONAS agents exposed to risks (operation, maintenance, purification).

Renovation and extension works of wastewater sanitation networks in the cities of Korba, Tazarka, Somaa, Maamoura, Beni Khiare, Dar Chabanne El Fehri, Nabeul, Hammamet, Zriba, Zaghouan and El Fahs in the governorates of Nabeul and Zaghouan (zone 1) - Framework contract

The acquisition of tires for rolling stock from ONAS

The Study Up to the Level of Tender Files for the Extension and Rehabilitation of the Primary Wastewater Sanitation Network of Sidi Hassine in the Governorate of Tunis and the Watershed of the Wastewater Pumping Station of B 'jaoua in Oued Ellil in Manouba Governorate

Execution Study for the Rehabilitation, Renovation, Improvement of Performance with Installation of Tertiary Treatment Units and Individual Photovoltaic Power Plants for Each of the Wastewater Treatment Plants of Menzel Témime, Boussalem, Teboursouk, Testour, Nefza, Zaghouan and Agareb

Rehabilitation and extension works of sanitation networks in the governorate of Tunis: Supply, transport and installation of pipes and construction of civil engineering works - Framework contract.

Supply, loading, transport and unloading of PVC and HDPE pipes for the execution of extension works of sanitation networks in the towns of Menzel Bourguiba, Tinja, Mateur and the rural localities of Borj Essebai and Naffet at the site of the Menzel Bourguiba Wastewater Treatment Plant In Bizerte Governorate

Renovation Work on the Existing Sanitation Network at Rue Tourbet El Bey Delegation of La Medina in the Governorate of Tunis

Wastewater Connection Works From the Military Barracks to the Public Sanitation Network in the City of Medjez El Bab