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Water Engineering Technology Sdn. Bhd. (WET) is one of the leading Mechanical and Electrical (M&E) specialist contractors in the country principally in the municipal water supply and wastewater infrastructure industry. WET has over 35 years of extensive knowledge and experience in intakes, water treatment plants, sewage treatment plants, pumping stations, upgrading and rehabilitation of treatment plants as well as operation and maintenance. WET is capable of providing complete M&E solutions comprising design, supply, installation, testing & commissioning as well as operation and maintenance.

WET is a 100% owned subsidiary of LLC Bhd. Together with its Sister company, LLC Infra Sdn Bhd, a leading Civil & Structural (C&S) Water Infrastructure Specialist, WET has the ability to provide complete C&S and M&E solutions for both water and wastewater projects on an Engineering, Procurement, Construction and Commissioning (EPCC) basis.

WET is a Class A contrator under the Sijil Perolehan Kerja Kerajaan (SPKK) [formally known as Pusat Khidmat Kontraktor (PKK)], a Grade 7 Contractor with the Construction Industry Development Board (CIDB) and holds a Grade C1 license with Jabatan Perkhidmatan Pembetungan (JPP).

  • Overview
  • EPCC Solutions
    • WET has undertaken several notable EPCC projects such as the 125MLD (Million Litres per Day) Sandakan Water Supply Scheme and the 60MLD Water Supply Scheme to SOGIP, Sipitang for Jabatan Air Negeri Sabah (JANS) and 400MLD upgrading work for Batu Kitang Water Treatment Plant, Kuching.

  • Intakes
    • WET has vast experience in providing M&E solutions for intakes and has completed the Semantan Intake, part of the Pahang-Selangor Raw Water Transfer Project and the largest water intake in Malaysia with a total capacity of 2400MLD, consisting of 3sets of 18.0m long Motorised Regulating Gates complete with stop logs, 6sets of 680MLD Bandscreens, 24 sets of 2400mm sq. Motorised Penstocks and 252 sets of Sand Ejector System.

      WET has also successfully completed and commissioned Intakes such as the 450MLD Intake, Sg. Selangor Phase 2 Stage 1 and Stage 2, the 600MLD Intake, Sg. Semenyih Water Supply Scheme, the 200MLD Intake, KIPC - Dungun Water Supply Project and the 135MLD Intake, Telibong Water Supply Scheme, etc.

  • Pumping Stations
    • WET prides itself as a Pumping Specialist with an experienced in-house design team to optimise pump plant design and selection to ensure optimum pump efficiency and operational costs. We have completed and commissioned over 30 large Raw Water and Treated Water Pumping Plants in Malaysia such as the 110MLD Pump Station, Sg. Muar Melaka Raw Water Transfer Scheme, the 206MLD Pump Station, Sg. Selangor Water Supply Scheme, Phase 1 Stage 2 Package E, the 282MLD Pump Station, Sg. Selangor Supply Scheme Phase 2 Stage 2 Package 4, and the 100MLD Pump Station, Jus Dam Melaka Raw Water Supply Scheme.

      Part of WET's track record is the 2400MLD Semantan Pump Station, the largest Pump Station in Malaysia, part of the Pahang-Selangor Raw Water Transfer, which comprises 12 sets of 300MLD verticalised split casing pumps coupled to a vertical 2500kW HT slip ring induction motor.

  • Treatment Plants
    • WET has vast experince in design, installation and commissioning of water treatment plants (WTPs) comprising key mechanical & electrical systems such as chemical preparation & dosing systems and complete water treatment process systems including Flocculation, Clarification & Filtration systems.

      WET also offers an in-house engineered tube settlers system that greatly enhances clarification performance, and exceeds water quality standards set by AWWA and MWA for clarified water.

      WET has successfully completed and commissioned more than 20WTPs such as the 130MLD Sg. Rasa Water Treatment Plant, Sg. Selangor Water Supply Scheme Phase 3, the 72MLD Sri Gading Water Treatment Plant Stage 2, the 125MLD Segaluid Water Treatment Plant, Sandakan Water Supply Scheme, the 60MLD Kudat Water Treatment Plant, and the extension of the 172MLD Semangar Water Treatment Plant Package2.

  • Overview
  • Pumping Stations
    • Besides water pumping stations, WET is also involved in Sewage Pumping Stations projects.

      WET has successfully commissioned and completed one of the largest Raw Sewage Pumping Stations Scheme for the Federal Government Administrative Centre in Putrajaya. Among the Sewage Pumping Stations in Putrajaya are Sewage Pumping Station PS10 to serve a Population Equivalent (PE) of 165,000, Sewage Pumping Station PS5 to serve 220,000 PE, and Sewage Pumping Station PS6 to serve 100,000 PE.

  • Treatment Plants
    • In addition to water supply, WET has played a key role in the development of wastewater infrastructure in Malaysia, and has been involved in several Sewage Treatment Plant (STP) projects for the National Sewage Scheme.

      STPs comprise not only mechanical and chemical processes but also involve biological processes. WET has completed, among other projects, the 240,000 PE Kuala Sawah STP and the 300,000 PE Sg. Udang STP, both part of the National Sewage Scheme under JBIC Financing.


WET's vast experience and track record in water and operating parameters for maintaining and operating water and wastewater enable us to be the leading company in providing upgrading and rehabilitation solutions to existing treatment and pumping plants. Upgrading and Rehabilitation is a complex process that requires careful plant audit analysis of the entire existing system and equipment to identify areas for improvement. Upgrading and Rehabilitation yields vast advantages such as significant increase in plant output capacity with low additional costs, short improvement time, and small foot print where little or no additional land is required.

Some of WET's notable upgrading projects include the Lambir Water Treatment Plant in Miri from 80MLD to 160MLD and the Batu Kitang Water Treatment Plant from 200MLD to 400MLD. Our rehabilitation track record includes the 450MLD Sg. Langat Treatment Plant in Selangor as well as the 180MLD Old Bertam Treatment Works in Melaka, and the 176MLD Water Treatment Plant in Port Moresby, Papua New Guinea.


As designers for treatment and pumping processes, WET has the advantage of better understanding and detailed knowledge of the equipment, processes and operating parameters for maintaining and operating water and wastewater infrastructure. This experience and knowledge enable WET to provide more economical, worry-free and efficient water and wastewater infrastructure.

WET is currently carrying out operation & maintenance (O&M) contracts for the Sandakan Water Supply Scheme consisting of the 125MLD Segaliud Water Treatment Plant and related infrastructure such as the Betotan Dam, Sg. Segaliud Intake and Kampung Cina Reservoirs and pipelines, as well as the 60MLD Kudat Water Treatment Plant comprising the Milau Dam and related infrastructure. Other O&M contracts include the 200,000PE PS12 Sewage Pumping Station in Putrajaya.