Nama Water Services (NWS), part of the Nama Group, has opened a public-private partnership (PPP) tender inviting local, regional, and international consortia to apply for the Request for Qualification (RFQ) for two sewage treatment plant (STP) projects.
The two projects include the development and long-term operation of the Al Ansab STP (Phase III) and the Al Amerat STP (Phase II). The scope covers capacity expansion as well as the long-term operation and maintenance of both new facilities and existing assets.
The Al Ansab STP is planned for an expansion of approximately 82,000 cubic metres per day, increasing its total capacity from 125,000 to about 207,000 cubic metres per day.
The Al Amerat STP will see an expansion of about 36,000 cubic metres per day, raising its capacity from 18,000 to 54,000 cubic metres per day. Together, the projects represent a significant increase in wastewater treatment capacity to support demand across Oman.
The tender supports the Sultanate of Oman’s broader aim to increase private sector involvement in essential infrastructure and is aligned with the objectives of Oman Vision 2040
NWS has stated that procurement will follow a Build-Own-Operate-Transfer (BOOT) model. Under this structure, the selected private partner will be responsible for the full lifecycle of the new infrastructure, including design, financing, procurement, operation, and maintenance, as well as the long-term operation of existing facilities.
The BOOT model is commonly used internationally for large-scale infrastructure projects, as it shifts design, construction, and operational responsibilities to the private sector over an extended contract period.
Interested developers, operators, and consortia must register to obtain the official RFQ documents. The RFQ reflects a growing pipeline of investment opportunities within Oman’s utility sector.
The tender supports the Sultanate of Oman’s broader aim to increase private sector involvement in essential infrastructure and is aligned with the objectives of Oman Vision 2040. The procurement is positioned as an important step toward strengthening the country’s water infrastructure capacity and overall operational performance.
