EMS Energy Ltd. is an investment holding company, which engages in the provision of engineered solutions and products for the marine, oil, and gas industries. It operates through the following segments: Engineering, Procurement, and Construction Management (EPCM) Marine and Offshore and Trading (MOT); EPCM Water Treatment (WT); and Others. The EPCM MOT segment includes engineering, procurement, construction and management; custom fabrication; maintenance and repair; and trading of marine and offshore equipment to mainly the marine and offshore oil and gas companies. The EPCM WT segment consists of environmental-related technical services for pollution management, water, and waste. The Other segment handles the investment holding activities of the company. The company was founded in 1977 and is headquartered in Singapore.