Dubai extends $22bn tunnels investor prequalification
28 August 2024
Dubai Municipality has set a new deadline for firms to submit their statements of qualifications (SoQs) for the contracts to develop and operate various packages of the $22bn Dubai Strategic Sewerage Tunnels (DSST) project.
According to a source close to the project, interested companies have until 21 October to submit their SOQs, which is six weeks later than the initial submission date of 5 September.
The investor prequalification process for the scheme, which is being procured on a public-private partnership (PPP) basis, comes after the client prequalified engineering, procurement and construction (EPC) contractors that can partner with the developers or investors to bid for the contracts.
DSST packages
Under the current plan, the $22bn DSST project is broken down into six packages, which will be tendered as PPP packages with concession periods lasting between 25 and 35 years.
The first package, J1, comprises Jebel Ali tunnels (North) and terminal pump stations (TPS). The tunnels will extend approximately 42 kilometres, and the links will extend 10km.
The second package, J2, covers the southern section of the Jebel Ali tunnels, which will extend 16km and have a link stretching 46km.
W for Warsan, the third package, comprises 16km of tunnels, TPS and 46km of links.
J3, the fourth package, comprises 129km of links.
J1, J2, W and J3 will comprise the deep sewerage tunnels, links and TPS (TLT) components of the overall project.
J1, J2 and W will be procured under a design-build-finance-operate-maintain model with a concession period of 25-35 years.
J3 will be procured under a design-build-finance model with a concession period of 25-35 years. Once completed, Dubai Municipality will operate J3, unlike the first three packages, which are planned to be operated and maintained by the winning PPP contractors.
The project’s remaining two packages entail the expansion and upgrade of the Jebel Ali and Warsan sewage treatment plants (STPs).
The prequalified EPC companies for packages J1, J2 and W are:
- Acciona Construccion (Spain) – Dubai branch
- Besix Construct (Belgium)
- China Harbour Engineering (China)
- China Railway Group (China)
- China State Construction Engineering Corporation (China)
- Daewoo Engineering & Construction (South Korea)
- Dogus Insaat VE Ticaret Anonim Sirketi (Turkiye) – Abu Dhabi
- FCC Construcccion (Spain)
- Archirodon Construction (Overseas) Company (Greece) / BESSAC (France)
- China Civil Engineering Construction Corporation – Dubai Branch / Shanghai Tunnel Engineering Company (STEC) / China Railway 14th Bureau Group Corporation
- Gulermak Agir Sanayi Insaat (Turkiye) / DETech Contracting (local)
- National Marine Dredging Company (local) / Afcons Infrastructure (India) / ITD Cementation India
- The Arab Contractors (Osman Ahmed Osman & Company, Egypt) / Darwish Engineering Emirates (local) / AqualiaMACE Contracting Operation & General Maintenance (local)
- Larsen & Toubro (India)
- Porr (Austria)
- Power Construction Corporation of China (China) – Dubai branch
- Samsung C&T Corporation (South Korea) – Dubai Branch
- SK Ecoplant (South Korea)
- Strabag Dubai (Austria)
- The Petroleum Projects & Technical Consultation Company (Petrojet) – Egypt
- Webuild (Italy)
EPC companies that have been prequalified to bid for package J3 are:
- Acciona Construccion (Spain) – Dubai branch
- Alghanim International General Trading & Contracting (Kuwait)
- China Railway Group (China)
- China State Construction Engineering Corporation (China)
- Daewoo Engineering & Construction (South Korea)
- DETech Contracting
- Archirodon Construction (Overseas) Company (Greece) / BESSAC (France)
- China Civil Engineering Construction Corporation (China) – Dubai branch / Shanghai Tunnel Engineering Company (STEC) / China Railway 14th Bureau Group Corporation
- Gulermak Agir Sanayi Insaat (Turkiye) / DETech Contracting (local)
- International Foundation Group (IFG, local) / General Construction Company (local)
- Nael Construction & Contracting (UAE) / Concord for Engineering & Contracting (Egypt) – Dubai branch
- National Marine Dredging Company (local) / Afcons Infrastructure (India) / ITD Cementation India
- Mapa Insaat Ve Ticaret (Turkiye)
- Mohammed Abdulmohsin Al-Kharafi & Sons (Kuwait)
- Porr (Austria)
- Power Construction Corporation of China – Dubai branch
- Strabag (Austria)
- Tecton Engineering & Construction (local)
- The Petroleum Projects & Technical Consultation Company – Petrojet (Egypt)
According to a source close to the project, packages J1 and W will be tendered together as separate contracts first, followed by J2 and J3, with the requests for proposals (RFPs) to be issued sequentially, staggered around six to 12 months apart.
The packages for the expansion and upgrade of the Jebel Ali and Warsan STPs will be procured in a process separate from the four DSST-DLT components.
The overall project will require a capital expenditure of roughly AED30bn ($8bn), while the whole life cost over the full concession terms of the entire project is estimated to reach AED80bn.
Sustainable project
The project aims to convert Dubai’s existing sewerage system from a pumped system to a gravity system by decommissioning the existing pump stations and providing “a sustainable, innovative, reliable service for future generations”.
Dubai currently has two major sewerage catchments. The first in Deira is Warsan, where the Warsan STP treats the flow.
The second catchment is in Bur Dubai, where the wastewater is treated at the Jebel Ali STP.
According to a source close to the project, the DSST will replace 120 pump stations, saving approximately 100 gigawatt-hours of electricity annually.
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Bankers view this as a token of the sector’s resilience. “Strong oversubscription from international lenders, together with tight pricing, reflects continued market confidence in the UAE’s financial sector,” said Shayne Nelson, Emirates NBD’s CEO.
UAE banks entered the crisis in a strong position. Capital and liquidity buffers are robust, with an aggregate capital adequacy ratio of 17.1% in Q4 2025 – well ahead of the minimum 10.5% level. The loan-to-deposit ratio stood at 77.7%, another metric indicating its latitude to extend ample credit to the economy.
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Analysts paint a picture of a broadly healthy banking system, at least pre-conflict. “In 2025, we saw some margin pressure, as competition for liquidity increased. UAE banks’ profitability metrics declined a bit. But banks entered this crisis in the best shape for the last 10 years. Take the NPL ratio; at around 3%, it’s been on a declining trend for the last five years,” says Anton Lopatin, senior director, financial institutions at Fitch Ratings.
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The events since 28 February have clearly ruffled the surface calm, although the UAE Central Bank has stepped in to provide additional support, announcing on 19 March a resilience package mainly made up of precautionary support measures focused on liquidity and forbearance. This comes amid reports of a sharp decline in liquidity in the banking system.
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“The central bank has a strong ability to support banks in the UAE, as it has AED1tn ($270bn) in external reserves. It means that it is able to provide support if needed, backed by these reserves,” says Lopatin.
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Disruption to air traffic and tourist inflows is likely to have only a small direct impact on UAE banks, whose lending to the transport (mostly aviation) and tourism sectors is limited. Fitch estimates the two combined accounted for less than 3% of total loans at end-2025.
“The UAE has always been sensitive to the real estate market performance. It has recovered strongly since Covid, with prices up by 60%. But if there is less economic activity, and less belief in Dubai as a safe jurisdiction, real estate would be among the first sectors to suffer,” says Lopatin.
Corporate real estate accounted for 13% of gross loans at end-2025, down from 20% at end-2021, and this sector is likely to be the main source of new Stage 3 loans if the conflict is prolonged, warned Fitch in a rating note issued on 2nd April.
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Too early to assess
Yet analysts caution against reading too much into this at this stage. “UAE banks’ total exposure to real estate is not so significant,” he says. “Currently, it’s less than 15%, the lowest level in 10-15 years. Any impact on banks will be gradual, but it will be under pressure, so banks will be under pressure too. Some smaller UAE banks entered this crisis with less cushioning and higher NPLs and therefore could be affected more.”
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