Saudi Water Partnership Company (SWPC) has announced the completion of the technical and financial evaluation for the development of the Hadda and Arana Independent Sewage Treatment Plant Projects. 

Both projects will be delivered through a Build-Own-Operate-Transfer (BOOT) structure involving private sector participation. Following a thorough assessment of all bids submitted by 31 July 2025, Miahona’s consortium was appointed as the Preferred Bidder for the Arana ISTP Project, with Metito’s consortium named as the Reserved Bidder. For the Hadda ISTP Project, Metito’s consortium was selected as the Preferred Bidder, while Miahona’s consortium was designated as the Reserved Bidder. Miahona Company is the Lead Consortium member, with a 35% share, alongside the Power and Water Utility Company for Jubail and Yanbu (Marafiq) –  technical member with a 35% share, and Buhur for Investment Company (Buhur). The total contract value for the Project is estimated, over SAR 3 billion (US$800 million).

The Project scope includes design, financing, engineering, procurement, construction, commissioning, completion, testing, ownership, operation and maintenance, handover, and transfer upon the expiry of the STA, of a new sewage treatment plant, having a treatment capacity of 250,000 m3/day, and of the associated facilities, including Water Special Facility, TSE Special Facility, and Outfall Delivery Facility. The Project includes the potential to expand its treatment capacity to up to 500,000 m³/day, subject to SWPC’s request. The Project scope also includes the development of Arana ISTP auxiliaries and interfaces, as follows:

• connection to the Arana Plant TSE Re-use Delivery Point;
• connection to the existing electrical substation;
• sludge treatment infrastructure, and handling, transportation and delivery of beneficial-use sludge to a designated disposal area; and
• Water Special Facility and Outfall Delivery Facility.