The reverse-osmosis desalination plant is the second-largest in the country and has the capacity to produce 250,000 m3 of water per day, supplying around 220,000 people. The public company Oman Power and Water Procurement Company awarded the bid for the Sohar 4 IWP desalination plant to the consortium led by Sacyr Agua, and in which Oman Brunei Investment Company and Sogex Oman are also participating, through the Water Purchase Agreement - WPA. The WPA includes the design, construction, ownership, financing, operation, maintenance and purchase of potable water for 20 years.