Provision for Management and Operation of Seawater Desalination Plants and Demineralization of Brackish Water, divided into five (5) Lots: Lot No. 1: Nador Province; Lot No. 2: Driouch Province; Lot No. 3: Guercif Province; Lot No. 4: Figuig Province; Lot No. 5: Jerada Province.