Darco Water Technologies Limited is an investment holding company. The Company is a provider of integrated engineering and knowledge-based water and wastewater treatment solutions, as well as vacuum systems for solid waste management. It operates through three segments: Engineered Environmental Systems (EE Systems), Water Management Services (WM Services) and Trading. The EE Systems segment contracts to design, fabricate, assemble, install and commission engineered water systems for industrial application, and engineered vacuum solution. The WM Services segment services and maintains water and wastewater treatment plants. The Trading segment trades and supplies goods comprising chemicals, electrical controls and related instruments used in water treatment systems. It has a presence in China, Malaysia, Singapore, and Vietnam. Its subsidiaries include Darco Engineering Pte. Ltd., Darco Water Systems Sdn. Bhd., PV Vacuum Engineering Pte. Ltd., and Darco Infraco Vietnam Water Pte. Ltd.