United Envirotech
United Envirotech was a Singapore-linked environmental engineering and consulting company focused on industrial wastewater treatment and related environmental services.
Last updated August 26, 2026
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History
United Envirotech was established in 2003 by Lin Yucheng and Goh Ching Wah as an environmental engineering and consulting business. Its core area was wastewater treatment, with particular relevance to industrial facilities that required specialized systems for managing effluent. The company’s work belonged to the broader environmental-infrastructure sector, where engineering firms develop treatment plants and provide associated technical and consulting services. In 2004, United Envirotech became publicly listed in Singapore under the ticker UENV. Reference material also records trading in the United States and Germany. The public-market presence reflected the company’s efforts to finance and expand an environmental-services business operating in a period when industrial pollution control and wastewater management were becoming increasingly important in China and other Asian markets. The company’s documented project activity included industrial wastewater infrastructure in China. In 2015, it was reported to be constructing a facility with capacity of 100,000 litres per day for a petrochemical industrial park in Luntai County, Xinjiang. The park was located near the beginning of the West–East Gas Pipeline, and the project was described as involving investment from the industrial park. The facility demonstrates the project-based and industrial nature of United Envirotech’s business: rather than selling a conventional consumer product, it delivered engineered treatment capacity for a defined industrial setting. Ownership and control became important themes in the company’s later history. During 2014 and 2015, reports said that CITIC Group and Kohlberg Kravis Roberts were jointly seeking a controlling interest through a newly created joint venture provisionally named CKM. The sources available for this entry do not establish whether the proposed transaction closed exactly as reported. Separately, KKR was reported in 2015 to own about 30 percent of United Envirotech based on stock holdings. Corporate information cited from the company website in 2023 named CITIC Environment Investment Co Ltd and China Reform Fund Envirotech Co., Ltd. as major shareholders. The same later source identified Sun Lei as executive chairman. Earlier, in 2015, co-founder Lin Yucheng was identified as chairman and chief executive officer. The available material does not provide a complete account of subsequent management changes, a confirmed delisting or dissolution, or the company’s present operating structure. United Envirotech’s current status is therefore recorded as unknown. Its documented historical identity is that of a Singapore-listed environmental engineering company with a strong association with industrial wastewater treatment and Chinese infrastructure projects.
- 2023
Major shareholders identified in company information
[1]Information attributed to the company website named CITIC Environment Investment Co Ltd and China Reform Fund Envirotech Co., Ltd. as major shareholders and identified Sun Lei as executive chairman.
- 2015
Industrial wastewater facility project reported
[1]The company was reported to be developing a 100,000-litre-per-day wastewater-treatment facility for a petrochemical industrial park in Luntai County, Xinjiang.
- 2015
KKR reported as a major shareholder
[1]KKR was reported to hold approximately 30 percent of United Envirotech based on stock holdings.
- 2014
Reported control transaction discussions
[1]Reports said CITIC Group and KKR were seeking control of the company through a proposed joint venture provisionally called CKM.
- 2004
Singapore public listing
[1]United Envirotech went public and was listed on the Singapore Exchange under the ticker UENV.
- 2003
Company founded
[1]Lin Yucheng and Goh Ching Wah founded United Envirotech as an environmental engineering and consulting company.
Products and positioning
An industrial environmental-services provider positioned around engineering, consulting, and wastewater-treatment infrastructure for industrial customers and specialized projects.
Environmental infrastructure
Industrial wastewater treatment systems
Engineered treatment facilities intended to process wastewater generated by industrial operations. The documented business emphasis was on project-scale infrastructure rather than standardized consumer products, including systems for specialized industrial and petrochemical environments.
Professional environmental services
Environmental engineering and consulting
Engineering and consulting services supporting the planning, construction, and operation of environmental facilities. Available references describe United Envirotech broadly as an environmental engineering and consulting company, but do not provide a detailed service catalogue.
Brand decisions
2015
Development of a Xinjiang industrial wastewater facilityStrategyBackground
United Envirotech was reported to be building treatment capacity for a petrochemical industrial park in Luntai County, Xinjiang, near the start of the West–East Gas Pipeline.
Action taken
The company undertook construction of a facility designed to process 100,000 litres of industrial wastewater per day.
Aftermath
The available reference material does not document the facility's completion, later performance, or financial contribution.
2014
Proposed control transaction involving CITIC and KKRM&ABackground
Reports described efforts by CITIC Group and Kohlberg Kravis Roberts to acquire a controlling interest in United Envirotech.
Action taken
The investors reportedly pursued the transaction through a newly created joint venture provisionally named CKM.
Aftermath
The available sources do not confirm whether the proposed transaction closed in the reported form.
Sources2 sources
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