Frontrunner emerges for Saudi sewage treatment project

13 March 2026

 

A consortium led by China’s Jiangsu United Water Technology has emerged as the frontrunner for a contract to build and upgrade two sewage treatment plants in Saudi Arabia, according to sources.

The contract covers the North Western A Cluster Sewage Treatment Plants Package 11 (LTOM11), part of the next phase of National Water Company’s (NWC) long-term operations and maintenance (LTOM) sewage treatment programme.

The consortium comprising United Water, Prosus Energy (UAE) and Armada Holding (Saudi Arabia) offered “the lowest tariff” for the project, sources told MEED.

It is understood that Turkey’s Kuzu has made the next-lowest bid.

The development, estimated to cost about $211m, will have a combined capacity of about 440,000 cubic metres a day (cm/d).

In February, MEED exclusively reported that six bidders were competing for the contract.

The other companies that have submitted proposals include:

  • Alkhorayef Water & Power Technologies (Saudi Arabia)
  • Civil Works Company (Saudi Arabia)
  • VA Tech Wabag (India)
  • Aguas de Valencia (Spain)

LTOM11, also known as the North Western A Cluster, forms part of the second phase of NWC’s rehabilitation of sewage treatment plants programme.

The scheme is being procured on an engineering, procurement and construction (EPC) basis with a long-term operations component.

The main contract was tendered last year, with an award initially expected by the end of 2025.

It is now understood that NWC is preparing to offer the main contract in the second quarter.

As previously reported, Saudi Arabia’s NWC is also evaluating five bids for package 12 of its long-term operations and maintenance (LTOM12) sewage treatment programme.

Known as the North Western B Cluster, LTOM12 forms part of the second phase of NWC’s rehabilitation of sewage treatment plants programme.

In January, the same United Water-led consortium won the main contract for the Northern Cluster Sewage Treatment Plants Package 10 (LTOM10).

That project includes the rehabilitation and operation of nine sewage treatment plants located across the Hail, Qassim, Al-Jouf and Northern Borders provinces

NWC is also preparing to tender a contract for the construction of 10 sewage treatment plants as part of package 14 of the programme.

The final details of the Eastern A Cluster (LTOM14) package are being finalised, with a tender likely to be issued in March or April, sources told MEED.


READ THE MARCH 2026 MEED BUSINESS REVIEW – click here to view PDF

Riyadh urges private sector to take greater role; Chemical players look to spend rationally; Economic uptick lends confidence to Cairo’s reforms.

Distributed to senior decision-makers in the region and around the world, the March 2026 edition of MEED Business Review includes:

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Mark Dowdall
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