Capability

Water and wastewater treatment in Singapore

Engineering, supply and operation of systems treating process water, potable water and industrial effluent, including filtration, reverse osmosis, membrane bioreactors and water reclamation. Serves manufacturing, utilities and municipal clients. Buyers select on PUB compliance record, plant references and ability to build, own or operate.

A buyer evaluating a water partner in Singapore works down a fixed stack: membrane technology and IP (does the firm make its own RO/UF/MBR, hollow-fibre or nanofibre membranes, or buy them in); EPC and BOOT/BOT track record measured in plant capacity (m³/day or MGD) and years of concession operation; whether the pedigree is industrial effluent and zero-liquid-discharge (ZLD) or municipal potable/NEWater/desalination; and the PUB project pedigree that signals a firm has cleared Singapore's own standard. Singapore is a genuine global hub here — PUB's NEWater and desalination programme and the Singapore International Water Week ecosystem exist precisely to concentrate this expertise — so the bar is high and the credible names are few. The record's job is to separate the firms that own membrane technology and operate concession-scale plants from the resellers and chemical-dosing contractors that cluster underneath them.

Singapore's water industry has a clear shape. At the top sit the integrated majors running concession-scale assets: Sembcorp Industries (SGX: U96), operator of the country's fifth and largest NEWater plant and multiple membrane-bioreactor (MBR) industrial-wastewater plants, and Keppel (SGX: BN4), whose Keppel Infrastructure/Keppel Seghers arm built and operates the 137,000 m³/day Keppel Marina East Desalination Plant and the 162,800 m³/day Ulu Pandan NEWater upgrade. Beneath them are the membrane makers — the distinctive Singapore strength — a cohort of indigenous producers of hollow-fibre and nanofibre membrane, including Memstar (PVDF hollow-fibre MBR, CITIC Envirotech's manufacturing arm), De.mem (ASX: DEM), Nano Sun, Memsift Innovations, Eurotec and Meiden. A third band of industrial-water specialists — Kurita, Darco Water, CITIC Envirotech, Moya Holdings Asia (SGX: 5WE) — serves refineries, semiconductor fabs and overseas municipal concessions. Structural shifts now driving demand: the energy cost of desalination (pushing dual-mode and lower-pressure RO), ZLD and high-saline effluent from electronics and chemicals, PFAS removal, and rising water reuse targets. The collapse of Hyflux — once the sector's flagship — reordered the field and left its former staff and technology dispersed across several of the firms below.

Also known as: wastewater treatment · effluent treatment · water reclamation · industrial water treatment · membrane technology · sewage treatment

Capability specifications

Processes: Reverse osmosis, ultrafiltration, membrane bioreactor (MBR), activated sludge, ion exchange
Applications: Process water, boiler feed, industrial effluent, desalination, water reclamation
Regulators: PUB trade effluent standards; NEA discharge limits
Delivery models: EPC, build-own-operate (BOO), build-operate-transfer (BOT), operations-and-maintenance
Management systems: ISO 9001, ISO 14001

Companies with this capability in Singapore

Sembcorp Industries
An SGX-listed energy and urban-solutions group, and Singapore's largest solar owner-operator — over 535 MWp locally across rooftop, ground-mount and floating, including the 60 MWp Tengeh Reservoir floating farm and the won 86 MWp Pandan Reservoir tender, with SolarNova tranches awarded. In water, it operates the Sembcorp NEWater Plant at Changi, Singapore's fifth and largest (~228,000 m3/day), and multiple energy-efficient MBR industrial-wastewater and reclamation plants including on Jurong Island.
Website (opens Sembcorp Industries in a new tab)
Keppel
An SGX-listed asset manager and operator whose infrastructure arm spans three clean-energy capabilities. In solar, Keppel Renewable Energy develops solar and cross-border clean-power, progressing an Indonesia-to-Singapore electricity import licence. In water, Keppel Seghers built and operates the 137,000 m3/day Keppel Marina East Desalination Plant and delivered the 162,800 m3/day Ulu Pandan NEWater upgrade. In waste, it runs the ~2,310 t/day Senoko and ~800 t/day Keppel Seghers Tuas waste-to-energy plants, together treating close to half of Singapore's incinerable waste.
Website (opens Keppel in a new tab)
Kurita (Singapore)
The Singapore industrial water-treatment arm of the Kurita group, serving refinery and petrochemical, power and semiconductor customers with boiler, cooling and wastewater treatment chemicals, RO and membrane solutions, ultrapure water and ion-exchange systems, plus plant build and monitoring. Operations at Joo Koon with a Johor site.
Website (opens Kurita (Singapore) in a new tab)
CITIC Envirotech
A membrane-based water and wastewater treatment group using MBR built on Memstar hollow-fibre membrane, with a portfolio of municipal and industrial treatment plants across China and Singapore delivered on BOT/TOT models. Formerly United Envirotech.
Website (opens CITIC Envirotech in a new tab)
Moya Holdings Asia
An SGX-listed Singapore-headquartered operator of one of Indonesia's largest municipal water-treatment portfolios, with total treatment capacity of roughly 14,000 litres/second serving over three million residents in Greater Jakarta.
Website (opens Moya Holdings Asia in a new tab)
Darco Water Technologies
Designs, fabricates, installs and commissions engineered water-purification and wastewater-treatment systems using membrane and ion-exchange technologies, with municipal and power-sector projects and O&M and resin-regeneration services.
Website (opens Darco Water Technologies in a new tab)
Black & Veatch (Singapore)
A global water-infrastructure EPC and design engineer; designer of Singapore's Sembcorp Changi NEWater Plant and a long-standing contractor on PUB-programme reclamation and desalination works.
Website (opens Black & Veatch (Singapore) in a new tab)
Memstar
A Singapore-based manufacturer of PVDF hollow-fibre membranes for MBR and water-treatment use, and the membrane-production arm of CITIC Envirotech. One of the indigenous membrane makers.
De.mem
An ASX-listed maker of ultrafiltration PES hollow-fibre membranes with graphene oxide, and PVDF-AG membranes, from a Singapore base at Tuas South, targeting industrial water and wastewater and decentralised treatment.
Website (opens De.mem in a new tab)
Nano Sun
Built Singapore's first 3D-printing plant for water-filtration membranes, producing nanofibre membranes for water and wastewater treatment and MBR applications. One of the indigenous membrane makers.
Website (opens Nano Sun in a new tab)
Memsift Innovations
Developed a thermal membrane-distillation zero-liquid-discharge (ZLD) system built on a highly hydrophobic hollow-fibre membrane for high-saline effluent from electroplating, semiconductor, chemical, pharma and oil-and-gas processes. Technology partnership with Syensqo (Solvay).
Website (opens Memsift Innovations in a new tab)
Eurotec Water
Manufactures anti-fouling PVDF hollow-fibre ultrafiltration membranes (NSF-certified) and engineers UF and brackish-water RO systems for seawater desalination, municipal drinking water, wastewater recycling and industrial process water. A First Line group company.
Website (opens Eurotec Water in a new tab)
Meiden Singapore (Meidensha)
Supplies ceramic flat-sheet membranes and complete industrial-wastewater treatment systems, covering design, manufacture, construction and O&M. Its ceramic-membrane technology differentiates it from the PVDF hollow-fibre cohort.
Website (opens Meiden Singapore (Meidensha) in a new tab)

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