Fun facts about Singapore | Tuas

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1. The ground has a second life

Did you know that some of the ground beneath Tuas Port began as material excavated somewhere else? MPA’s engineering-awards account says reused dredged seabed material and earth from land excavation made up more than half of the Phase 1 reclamation fill. Reuse was only the beginning of the challenge. Fill containing clay had to be treated so that the finished ground would remain within the tight stability requirements of driverless vehicles. That creates an unexpected connection between soil engineering and automation: a vehicle’s clever control system still needs a dependable surface beneath its wheels. The same account says hard rock dredged from below the seabed was reused for shore protection and reclamation. Tuas therefore contains several kinds of material journey. Earth became working ground, while rock could help protect the edge of that ground. These were engineered applications with performance requirements, rather than simply tipping unwanted material into the sea.

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2. A workboat helped build the seabed foundation

Before the quay could support ships and cargo, parts of its underwater foundation needed an accurately constructed rock mound. MPA’s 2018 sustainability report describes Temarock, a specially designed multipurpose vessel used for this work at Tuas Terminal Phase 1. Instead of assigning the different construction activities to several vessels, Temarock combined them. It could also survey the underwater surface and process that survey information itself. The report says the arrangement reduced the time for the rock-mound activities by about half. That figure belongs to this construction process, not to the time needed to build the whole port. The surprise is that automation was already at work before the container-handling machines arrived. Here its subject was a seabed foundation. Combining activities aboard one vessel also reduced the number of craft working close together, making the organisation of the worksite part of the engineering solution. A finished quay conceals a remarkable amount of precisely arranged work beneath the water.

Another construction tool makes the scale easier to picture. MPA’s March 2021 maritime factsheet identifies the grab dredger GOSHO in the Phase 1 works and gives its bucket a capacity of 200 cubic metres. The same record describes two caisson-production lines and an output of eight caissons a month. Those details show two very different rhythms of port building: large bites of seabed material on one side, and repeated manufacture of enormous structural units on the other. A caisson was not cast wherever it happened to be needed. Production had to be organised as a sequence, with space, equipment and handling arranged around it. The figures are a dated construction snapshot. Their value is the glimpse of the machinery and production planning behind an apparently simple straight quay edge, rather than a claim that these construction operations continue unchanged today.

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3. The port office uses its skin and its data

Solar panels need not live only on a roof. PSA’s 2021 account of its Tuas Maintenance Base Administrative Building describes photovoltaic panels on the exterior façade as well as roof panels at the maintenance base. The building also uses sensors to collect temperature, humidity, light and carbon-dioxide information. These readings support energy management by helping the system anticipate how the building’s resources will be used. It is a pleasing combination: the building’s outside can gather energy, while information gathered inside can help manage consumption. PSA also describes window-frame and cooling-system choices intended to reduce unwanted heat while maintaining comfortable ventilation. The forecast was for 58 per cent less annual energy use than comparable buildings. That is a stated design comparison, not a claim that every port building uses the same amount. An administrative workplace, easily overshadowed by cranes, becomes an interesting piece of environmental engineering in its own right.

There was a second, less visible building beside the physical one: its digital model. BCA’s 2020 construction case study explains how building information modelling was intended to support the Tuas Port Maintenance Base from design through facilities management. Different teams could combine their models into an integrated three-dimensional view. The proposed next step was to connect that information to an asset-management system for maintaining the finished building. This gives a digital model a job beyond making an attractive image before construction. Information about the building could remain useful when equipment needed attention later. BCA also describes virtual collaboration between people working in different locations. The account was written during construction, so its efficiency improvements were expectations. The enduring discovery is the continuity of information: knowledge assembled while making the building was intended to help the people responsible for looking after it.

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4. A quay wall can ask an ecological question

A port wall usually makes us think of structural strength. PSA’s 2021 sustainability report records a different experiment in the same setting: cement-mortar patches were fitted to the wall surfaces of seven Tuas caissons to encourage coral growth. The number matters. This was a specific intervention on selected structures, not a statement that the entire port had become a coral reef. It is nevertheless a striking design detail. The surface of an engineering structure was being considered as a possible place for marine settlement, alongside its primary role in the port. The report describes the intention to promote growth; it does not provide a long-term ecological outcome for every patch. That distinction leaves us with a genuinely interesting question rather than an exaggerated success story: how can the design of a new marine structure take account of the living environment around it? Tuas provides a documented example of that question reaching the scale of an actual quay wall.

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5. Seawater is prepared before the salt comes out

Removing salt is not the only task inside a desalination plant. PUB’s plant overview identifies Tuas Desalination Plant as Singapore’s first to combine dissolved-air flotation with ultrafiltration in its pretreatment. The purpose is to reduce membrane fouling and improve operation while treating seawater. Pretreatment happens before the main desalination step, so the interesting discovery is the preparation of the incoming water. The plant is distinct from the similarly named Tuas South Desalination Plant. Keeping the names separate also keeps the technology attached to the correct facility.

The 2018 opening speech gives the Tuas plant another role: a place where research partners could test technologies under realistic conditions without disrupting its live operation. That is a valuable middle ground between a laboratory idea and changing a working water-supply process. Researchers need meaningful conditions, while operators must keep their essential service dependable. The speech also described solar panels intended to meet the administrative building’s energy needs. This was not a promise that the whole desalination process would run on its own roof. Separating the office’s electricity requirement from the treatment plant’s requirement makes the design easier to understand. Tuas Desalination Plant brought direct PUB operation, experimental space and energy-conscious building features into the same local story. Its most interesting features therefore include how knowledge is developed and retained, as well as how water passes through equipment.

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6. One research site explores two different uses of electricity

Did you know that a Tuas water experiment investigated moving the salt rather than forcing the water through a dense membrane? PUB’s 2016 Innovation in Water publication describes an electrodialysis pilot planned at its Tuas research facility. Electrically charged salt ions move towards oppositely charged electrodes, passing selectively through alternating ion-exchange membranes. The arrangement creates separate streams with different salt concentrations. The article describes Evoqua’s modular technology and plans to increase the pilot’s flow gradually. This is a dated research account, not evidence that electrodialysis replaced Singapore’s operating reverse-osmosis plants. Its appeal lies in a different way of asking the desalination question. Instead of considering only how hard to push seawater, the researchers investigated how an electric field could separate its dissolved ions. Changes to power input could also influence output quality. Tuas was a real test setting for exploring that relationship between electricity, membranes and water.

A later Tuas experiment used electricity for a different purpose. PUB’s February 2024 Equatic announcement reported a successful carbon-removal pilot and a planned larger demonstration facility at its Tuas research site. The process passes electrical current through seawater, triggering reactions intended to remove and store carbon dioxide while also producing hydrogen. The expansion was designed as modules that could be tested and added in stages. Its planned selective anodes were intended to produce oxygen while avoiding unwanted chlorine generation. These are specific technical ambitions, not a claim that any electrical treatment of seawater automatically provides a climate benefit. The announcement distinguishes the existing pilot from the much larger proposed demonstration. It does not establish that the expansion is now operating at its planned full output. The intriguing Tuas connection is the reuse of a water-research setting to investigate a new combination of chemistry, carbon removal and hydrogen production.

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7. Ceramic membranes are chosen for a demanding water stream

Ceramic is familiar in cups and tiles, but a different form of ceramic material appears in the design of Tuas Water Reclamation Plant. PUB’s 2021 equipment-contract announcement describes ceramic membrane bioreactors for industrial used water. The selection followed demonstration work at Jurong Water Reclamation Plant, where PUB reported resistance to chemical damage while treating a strong industrial stream. The earlier trial was at Jurong; the planned large installation belongs to Tuas. That distinction matters because research evidence and the eventual deployment are separate places. PUB projected a longer service life for ceramic membranes than for the polymeric membranes used for comparison. These were projections, not a guarantee for every individual membrane. The local surprise is the material choice: selecting a filter is not only about the size of what it separates. The material must also cope with the chemical conditions of the water it will repeatedly encounter.

The current PUB project account places that machinery inside a larger arrangement of tunnels and treatment facilities. The second Deep Tunnel Sewerage System phase connects the western used-water network to the future Tuas plant. Its tunnelling works were completed in August 2023, but other work continued, including corrosion-protection lining, link-sewer construction and mechanical and electrical installation. PUB gives phased commissioning from 2027. An excavated tunnel is therefore only one part of a functioning water system. The lining protects it, connecting sewers bring flows into it, and equipment is needed at the treatment end. This makes the word completed worth examining carefully: completion of tunnelling does not mean completion of the whole service. The plant’s membrane story and the tunnel story meet at Tuas, while retaining their separate construction milestones.

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8. Two neighbours are designed to exchange useful leftovers

Tuas Nexus has an unusually practical idea behind its paired facilities. The joint PUB and NEA construction announcement explains that source-separated food waste would be prepared as slurry and digested with used-water sludge. Compared with sludge alone, the combination was expected to increase biogas production. That gas would then be burned at the Integrated Waste Management Facility, with the heat recovered to improve electricity generation. The pleasing detail is the sequence of transformations: food waste is prepared, mixed with another stream, converted into gas and used in an energy process. Locating the water and waste facilities together allows these exchanges to be designed from the outset. The announcement describes intended performance. It should be read as the engineering rationale for the development, rather than as a measured account of a fully operating Nexus. The discovery is how two different treatment jobs can supply useful inputs to one another.

A separate 2021 NEA announcement explains a return journey. Steam from the sludge-incineration facility was intended to support thermal hydrolysis at the water plant, a process used to prepare sludge before anaerobic digestion. The same development would treat dewatered sludge next door rather than trucking it elsewhere for that treatment. Its food-waste facility would first separate inorganic material before turning the food fraction into slurry. This detail prevents the appealing idea of co-digestion from becoming a story about indiscriminately mixing everything together. Different materials need different preparation and different destinations. The designed exchanges include solids, slurry, gas, heat and electricity, with each playing a particular role. That makes the project more interesting than two large plants sharing a fence. Its integration concerns the movement and preparation of resources between processes. The old release’s opening target has since changed; these paragraphs describe design functions, not completed operating results.

For timing, NEA’s current IWMF page places the progressive completion of Phase 1 in 2027 and subsequent years. That is the date framework to use when reading the earlier design announcements.

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9. An incineration plant also sorts air, metal and ash

The furnace is only one part of Tuas South Incineration Plant’s story. Its 2026 technical brochure describes waste bunkers kept below atmospheric pressure to help prevent odours escaping. It also explains how electromagnetic separators recover ferrous scrap from the material left after burning. The metal is sent for recycling, while ash and slag follow a disposal route. These are different streams with different jobs and destinations. Even weighing a delivery has two stages: a loaded truck is weighed on arrival, then again after unloading, allowing the weight of its waste to be determined. Taken together, the details turn an apparently single action, burning waste, into an organised sequence of measurement, storage, combustion and material handling. Air-pressure control belongs to the building’s operation; magnetism belongs to recovery from the residue. The plant is a useful reminder that several familiar scientific ideas can work together inside one industrial process.

The early TuasOne engineering brochure provides a different view through its process diagram. It separates bottom ash from boiler ash and the products collected during flue-gas treatment. The proposed gas-treatment system included a stage for reducing nitrogen oxides and fabric filtration for dust, acidic gases and other pollutants. Its diagram also shows steam passing through a turbine-generator arrangement, with cooling and feedwater equipment completing another part of the system. This brochure belongs to the project’s design period and contains an obsolete expected opening date, so it is not used here as a present-day operating schedule. Its value is the way it reveals multiple outputs and treatment stages. Electricity is one useful product, but it does not make the remaining ash or the need for air-pollution controls disappear. TuasOne’s design documentation makes those separate responsibilities visible.

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10. Compact plants still need room for maintenance

NEA’s 2022 TuasOne announcement identifies a plant designed to process 3,600 tonnes of waste a day on 4.8 hectares. At that time, NEA described it as Singapore’s most land-efficient waste-to-energy plant. The area and treatment capacity belong together: land efficiency concerns how much working capacity is arranged within the site, rather than a claim that the building is small in everyday terms. NEA also highlighted higher heat recovery and electricity-generation efficiency in the design. Its photographs identify a bunker able to hold 14,400 tonnes of waste, reminding us that a treatment facility needs storage as well as processing machinery. Deliveries and treatment are related activities, but they are not the same activity. The bunker provides a place for material waiting to enter the process. That combination of storage, treatment and energy recovery explains why compact industrial design is an exercise in organisation, not merely squeezing equipment closer together.

Meanwhile, Tuas South Incineration Plant demonstrates the ingenuity involved in keeping an older facility useful. NEA’s March 2026 retrofit announcement describes replacing furnace-boiler tubes with heat-resistant tubes, improving welding and adding advanced temperature controls across six units. Work was scheduled from June 2026 to the final quarter of 2027. The plan keeps waste treatment running with the remaining units while upgrades proceed. That is a different challenge from constructing an empty new building: the place still has a daily job to do. Other planned work includes ash handling, waste cranes and flue-gas treatment. These details make maintenance sound less like a minor finishing task and more like a coordinated engineering project. The intended extension of operations to 2035 depends on renewing important parts of the working system. This is a current upgrade plan, not confirmation that every replacement has already been completed.

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11. A recycling idea begins with recognising the material

A robot can be useful before waste reaches a furnace. In its 2020 Wah & Hua feature, JTC described plans for a Tuas facility combining sorting and incineration. Robots would recognise different shapes and dimensions to separate recyclable materials. Useful paper and plastic would go for sale or further processing, while remaining contaminated recyclables would move by conveyor to energy recovery. The sorting decision is the important detail. Different objects arriving in the same load do not necessarily belong at the same destination. JTC’s account explains how difficulties handling mixed incoming material at the company’s Kranji premises helped inspire the Tuas project. Kranji was the earlier problem setting; the proposed integrated facility was in Tuas. The article’s original opening forecast is not treated as proof of current operation. What it documents is a local design response to a practical business problem: bring recognition, separation and treatment closer together so that materials can follow more suitable paths.

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12. Vaccine manufacture includes a digital version of the process

Tuas’s manufacturing stories include products far smaller than a shipping container. GSK’s 2023 expansion announcement describes plans to use process analytical technology and process digital twins in its vaccines facility. Their stated purpose was to improve control over manufacturing and help maintain consistent product quality and output. A digital twin here is connected with understanding a production process, rather than simply showing a building in three dimensions. The announcement also identified energy-efficient heating, ventilation and air-conditioning as part of the design. That is a useful pairing: the product-making process and the conditions around it both need attention. Jobs described for the expansion included production, quality assurance, quality control and technical services. Manufacturing a vaccine ingredient therefore involves more than a production line alone. It brings together making, measuring, checking and maintaining the environment in which the work happens. The projected energy savings in that release remain design estimates, not a measured annual result.

The current GSK Singapore account identifies the vaccines site at 10 Tuas South Avenue 8 and now gives 2028 as the expected commercial-production start for the Hepatitis B expansion. This supersedes the earlier release’s 2027 expectation. It also distinguishes the Tuas vaccines operation from GSK’s separate Jurong manufacturing site. One company can have several specialised workplaces, and its national presence should not be collapsed into a single address.

The electricity story has a useful distinction too. GSK’s 2024 energy announcement described a ten-year agreement with Sembcorp covering the electricity demand of its then three Singapore manufacturing sites, including Tuas. The arrangement combined renewable-energy certificates from Singapore solar projects with electricity generated by on-site panels. That is not the same as saying every unit of electricity used at the Tuas factory comes directly from panels on its own roof. The announcement describes how renewable generation and purchased certificates contribute to the company’s electricity accounting. Keeping that mechanism visible makes the claim more informative than a broad green label. It also keeps the scope honest: figures given for all Singapore manufacturing sites cannot automatically be assigned to the Tuas site alone. Behind a familiar-looking solar roof can sit a wider procurement arrangement, with the physical equipment and the accounting commitments playing different roles.

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13. A factory can rearrange its rooms around the work

Imagine a production building designed around pieces that can be reconfigured. Sanofi’s 2024 Modulus unveiling describes space equivalent to 34 standardised production modules at Tuas Biomedical Park. Interconnected modular equipment allows production lines to be arranged for different needs. The company said the facility could be adapted for up to four vaccines or biopharmaceuticals simultaneously and change between pre-established technology platforms in days rather than the weeks or months associated with conventional plants. The qualification pre-established matters: this is engineered flexibility within supported processes, not a magical room that can manufacture anything on demand. The announcement was an inauguration, with full operation then forecast for a later date. Its strongest fun fact is architectural and organisational. The building was conceived to accommodate changing production arrangements, making adaptability part of its design rather than a problem to solve only after a product changes.

The 2026 ISPE award account adds wonderfully concrete details. It describes standardised docking stations that connect equipment to utilities, data and controls. It also identifies moveable inflatable walls and adjustable heating, ventilation and air-conditioning zones, allowing containment arrangements to change with the work. Those are mechanisms behind the word modular. The twin Modulus projects in Singapore and France share this approach, but ISPE identifies different first products: an enzyme for Singapore and an mRNA-based product for France. Their shared design does not mean identical output. The account also describes automated material handling, including mobile robots and ultraviolet decontamination. Keeping materials moving appropriately is part of the factory’s flexibility, alongside moving equipment. This award recognises a manufacturing design and its implementation; it should not be used to claim that every announced product has received approval or that every planned production programme is already in commercial supply.

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14. A Tuas product joins an aircraft’s journey elsewhere

An aviation-related Tuas discovery begins well away from the airport. Neste’s May 2023 expansion announcement explains a supply chain in which neat sustainable aviation fuel is made at its Tuas refinery, blended with conventional jet fuel at a Singapore blending terminal, certified to the relevant specifications and then delivered to airline customers at Changi Airport. Production, blending, certification and delivery are separate stages. The refinery does not become part of Changi’s planning area because its product goes there. Nor does the phrase sustainable aviation fuel mean an aircraft produces no emissions. Neste’s environmental comparison is expressed over the fuel’s life cycle, with stated assumptions. The local fact is the manufacturing and supply connection: a western industrial facility can make a product whose final use is associated with the far eastern airport. Tuas’s contribution is an earlier, specialised step in that journey.

Neste’s refinery profile adds a material-processing detail behind that supply chain. Its Singapore expansion included additional pretreatment capability and a hydrogen-production unit, supporting the processing of more challenging waste and residue raw materials. That means the incoming material is part of the engineering problem, not merely a label attached to the finished fuel. Different feedstocks have to be made suitable for the refinery’s processes. The profile identifies production of renewable diesel, aviation fuel and renewable raw materials for polymers and chemicals at the integrated site. Its stated annual production capacity is a capability figure, not a promise that the refinery produces that quantity every year. The variety of outputs also makes the site more interesting than a single-product description suggests. A shared industrial location can support several related material routes, with pretreatment helping determine what inputs the process can handle.

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15. A lighthouse belongs to a working marina

Tuas’s small lighthouse has a different owner from the one many readers might expect. Raffles Marina’s own lighthouse page says the club maintains the beacon at the end of its breakwater. The operator describes a 12-metre-high structure flashing every ten seconds. That repeated flash gives the object a working identity beyond its familiar outline in photographs. Its position on a breakwater also connects the beacon with the physical edge of the marina. We can still appreciate the clear, well-supported detail: a private marina looks after a recognisable piece of coastal navigation infrastructure. The lighthouse is not evidence that every waterfront site in Tuas is publicly accessible. Access to the breakwater is subject to the club’s rules and can be restricted in poor weather.

The marina’s facilities account adds another scale to that waterfront. It advertises berthing options for yachts up to 100 metres long, dry-stack storage and a boat-repair yard with a 70-tonne travel lift. A marina therefore has jobs beyond providing a place to tie up. Some boats can be stored out of the water, and lifting equipment supports work that cannot be carried out in the same way while a vessel is afloat. These functions make the shore a transition between sailing, storage and maintenance. The operator’s range of facilities is not a claim that every boat uses every service, but it helps explain why the development contains more than a line of berths. Next to Tuas’s much larger industrial stories, the marina offers a more immediately imaginable example of design organised around the changing needs of a vessel.

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16. Safety training can make an invisible risk tangible

One Tuas learning space was designed for the people building its infrastructure. PUB’s 2023 sustainability report describes an experiential safety-training facility at the Tuas Water Reclamation Plant construction site, developed with McConnell Dowell and Jacobs. Eight simulator stations addressed risks including work at height, confined spaces and traffic management. One demonstrated the danger of being crushed by moving machinery, helping participants understand hazards around heavy vehicles and their blind spots. This is a striking educational design: instead of relying entirely on someone reading a warning, the training creates a controlled experience that makes the risk easier to recognise. The report records senior management taking part in September 2022 and describes the facility as part of mandatory induction for site workers and staff. It is not a public attraction or an invitation to enter the construction site. The discovery is that a major engineering project can include purpose-built ways of teaching people how to work more safely.

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Frequently asked questions

Is this a list of places to visit?

No. Many examples concern controlled industrial premises or construction sites. The linked records let readers explore their design without assuming access. Any visit requires a separately verified public programme and the operator’s permission.

Does a pilot prove that a full-scale plant works?

No. A successful pilot does not automatically establish full-scale performance. Check for a later operating result before treating projected output as achieved.

Where does the area boundary come from?

This article uses the URA Master Plan 2025 planning-area framework. Company names and destination names do not redraw those boundaries. Facilities elsewhere appear only when needed to explain a Tuas connection, such as a research trial at Jurong or fuel delivery to Changi.

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Keep discovering Tuas

For the longer place history, continue with History of Singapore | Tuas. For an existing family-learning perspective, read Things to do for Kids | Learning Tuas.