Spanish/local firm wins $544m Saudi desalination contract

28 July 2025

Saudi Water Authority (SWA) has awarded a $544m engineering, procurement and construction (EPC) contract to a consortium of Madrid-headquartered Lantania and local firm Mutlaq Al-Ghowairi Contracting Company for a project to develop a reverse osmosis seawater desalination plant in Jubail, Saudi Arabia.

The Jubail desalination plant will be able to treat 600,000 cubic metres a day (cm/d) of seawater using reverse osmosis technology.

The joint venture will carry out the design, supply, construction, assembly and commissioning of the plant, as well as the seawater intake, outfall and all associated infrastructure required for the project.

According to Lantania, the Jubail desalination plant will be the firm’s third desalination project in the kingdom.

In March, MEED reported that India’s Larsen & Toubro (L&T) and Lantania had won the EPC contract for the Ras Mohaisen independent water project (IWP) in Saudi Arabia.

The Ras Mohaisen IWP will be able to treat 300,000 cm/d of seawater using reverse osmosis technology. It will also include storage tanks with a capacity of 600,000 cubic metres – equivalent to two operating days – as well as intake and outfall facilities, process units and pumping stations.

Lantania has also been involved in the Jubail 3A desalination project.

In July last year, MEED reported that Saudi Arabia's main producer of desalinated water, Saline Water Conversion Corporation (SWCC), had set a deadline of 4 July to submit proposals for two other water desalination plant projects located in Jubail and Ras Al-Khair.

SWCC is the world's largest producer of desalinated water, with a capacity of at least 6.6 million cm/d.

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Yasir Iqbal
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