Bidders await NWC decision on sewage contract

17 February 2026

 

Saudi Arabia’s National Water Company (NWC) is 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.

The contract covers the construction and upgrade of seven sewage treatment plants with a combined capacity of about 162,000 cubic metres a day (cm/d).

As MEED understands, the companies that have submitted proposals include:

  • Alkhorayef Water & Power Technologies (Saudi Arabia)
  • Civil Works Company (Saudi Arabia)
  • Miahona (Saudi Arabia)
  • Beijing Enterprises Water Group – BEWG (Hong Kong)
  • Al-Yamama (Saudi Arabia)

Earlier this month, MEED exclusively reported that six contractors are competing for the North Western A Cluster Sewage Treatment Plants Package 11 (LTOM11), which has an estimated value of about $211m.

The project involves the construction and upgrade of two sewage treatment plants with a combined capacity of about 440,000 cm/d.

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

It is understood that contracts for LTOM11 and LTOM12 will be awarded in May.

In January, a consortium of United Water (China), Prosus Energy (UAE) and Armada Holding (Saudi Arabia) won the main contract for the Northern Cluster Sewage Treatment Plants Package 10 (LTOM10).

This contract was the first to be awarded under the second phase of NWC’s rehabilitation of sewage treatment plants programme.

NWC previously awarded $2.7bn-worth of contracts for the first phase of its LTOM programme. This comprises nine packages covering the treatment of 4.6 million cm/d of sewage water for the next 15 years.

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Mark Dowdall
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