Dubai prequalifies EPC firms for $22bn tunnels project
2 August 2024
Dubai Municipality has prequalified engineering, procurement and construction (EPC) companies that can bid, along with investor and operation and maintenance (O&M) partners, for the contracts to develop four of the six packages of the $22bn Dubai Strategic Sewerage Tunnels (DSST) project.
Under the current plan, the $22bn DSST project is broken down into six packages, which will be tendered as public-private partnership (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 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 them, unlike the first three packages, which are planned to be operated and maintained by the winning PPP contractors.
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 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)
J1, J2, W and J3 will comprise the deep sewerage tunnels, links and TPS (TLT) components of the overall project.
Dubai Municipality said the prequalified companies have received the pre-request for proposal phase versions of the technical schedules.
For each EPC contractor, the technical prequalification may be in respect of one or more components – which include deep sewer tunnels, terminal pumping stations and/or link sewers, as applicable – of one or more DSST-TLT packages.
MEED understands the project’s remaining two packages, the expansion and upgrade of the Jebel Ali and Warsan STPs, will be procured in a process separate from the four DSST-DLT components.
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
Unconventional procurement process
In addition to its size, the project is gaining significant interest due to its unique procurement approach, whereby EPC contractors’ prequalification precedes developers’ prequalification.
"The idea is to issue the technical information pack to the prequalified EPC contractors before the prequalification process for investors starts, allowing EPC contractors time to undertake the design process," the source said.
"These designs should be ready once the Dubai Municipality completes the prequalification process for investors, saving roughly three months compared to the usual route where the prequalification process for developers and EPC contractors are done simultaneously."
The staggered prequalification process is expected to help ensure the RFP process takes around six months rather than the typical nine-month period.
"It will also encourage a stronger partnership approach to implementing the project's various packages," said the source.
Dubai Municipality recently invited investors and developer firms to submit their statements of qualifications by 5 September for the contracts to develop and operate various packages of the project.
The client is expected to issue the RFP to prequalified investors by the end of September.
The bidders for each of the PPP RFPs will be prequalified consortiums comprised of sponsors, EPC contractors and O&M contractors.
MEED previously reported that 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 sewage treatment plant (STP) treats the flow.
The second catchment, called Jebel Ali, 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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Beyond that short-term role, the recent $8bn investment the Qatari giant has committed to building two new LNG processing trains will also cement its position as a reliable long-term supplier, while further intensifying the race among global LNG producers to carve out larger market shares in an increasingly gas-hungry world.
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Such a short interval between the feed and EPC phases for a project as large as North Field West LNG would typically be considered improbable. Industry sources suggest QatarEnergy may have been in discussions with Chiyoda and the Technip Energies-CCC consortium for at least a year regarding the feed and EPC contracts, respectively – particularly given the two-year gap between the project’s announcement in February 2024 and the start of the EPC phase.
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More significant, however, is the speed with which QatarEnergy is advancing its strategic objective of reaching a total LNG production capacity of 142 million t/y by the end of the decade, from 77.5 million t/y at present.
With all three phases of the North Field LNG expansion programme now under EPC execution – and North Field East scheduled for commissioning later this year – QatarEnergy appears firmly on track to become one of the world’s largest LNG suppliers over the long term, reinforcing Qatar’s economic future in the process.
US domination
While QatarEnergy is on course to increase its LNG production capacity by 83% by 2030 through the overall North Field LNG expansion programme, it is still some way behind the US, which is set to account for over half of the total global LNG liquefaction projects by 2030.
There are 40 new-build and expansion LNG liquefaction projects planned or under way in the US, according to UK analytics firm GlobalData. Among these, two projects stand out.
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NextDecade achieved the final investment decision on the fourth and fifth trains at the facility, estimated to cost $6.7bn each, in September and October last year. The company has awarded EPC contracts to build all five trains at the Rio Grande facility to US-based Bechtel.
On the investments front, the overseas-focused energy investment vehicle of Abu Dhabi National Oil Company (Adnoc), XRG, acquired an indirect 11.7% stake in the first phase of the project from Global Infrastructure Partners (GIP), part of US asset manager BlackRock, in September last year. In February 2026, XRG entered into another transaction with GIP to raise its overall participation in the Rio Grande LNG project by acquiring additional 7.6% equity interests in trains four and five of the scheme.
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Positive outlook
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While it might be a challenge for QatarEnergy to compete with US players in combined liquefaction capacity, its strength and success will lie in clinching long-term offtake deals with customers in Asia, where the bulk of global LNG demand growth is expected.
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DP World sees Red Sea port volumes rising as Hormuz shuts13 March 2026
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Dubai-based ports operator DP World is preparing for higher throughput at its Red Sea terminals as the Iran conflict approaches its second week, CEO Yuvraj Narayan said on Thursday.
With the Strait of Hormuz effectively closed and tanker attacks escalating, shipping movements into Gulf ports have fallen.
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Frontrunner emerges for Saudi sewage treatment project13 March 2026

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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.
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In February, MEED exclusively reported that six bidders were competing for the contract.
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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.
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READ THE MARCH 2026 MEED BUSINESS REVIEW – click here to view PDFRiyadh 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:
> RAMADAN: Data disproves the Ramadan slowdown story> INDUSTRY REPORT: Chemicals producers look to cut spending> INDUSTRY REPORT: Global petrochemical project capex set to rise until 2030> MARKET FOCUS: Egypt’s crisis mode gives way to cautious revival> LEADERSHIP: Delivering Saudi Arabia’s next phase of rail growth> INTERVIEW: Abu Dhabi’s Enersol charts acquisitions pathTo see previous issues of MEED Business Review, please click herehttps://image.digitalinsightresearch.in/uploads/NewsArticle/15968035/main.jpg -
Medina tenders Sikkah Al-Hadid PPP project13 March 2026
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The development will consist of a four-star hotel integrated with retail and healthcare facilities.
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