MTQ Corp. Ltd. is an investment holding company, which engages in the provision of engineering solutions for oilfield equipment. It operates through the following segments: Investment Holding, Oilfield Engineering, Engine Systems, and Neptune. The Investment Holding segment provides management and corporate services to the company's subsidiaries; and derives dividend and rental income from the subsidiaries and quoted investments. The Oilfield Engineering segment offers engineering services for the servicing, manufacturing, assembly and fabrication of oilfield equipment such as valves and blow-out-preventers used in the oil and gas industry. The Engine Systems segment handles the sales and servicing of turbochargers used in a range of vehicles and machinery including trucks, earth moving equipment, agricultural machinery, marine vessels, generator sets, and railway equipment. The Neptune segment provides engineering services to offshore oil and gas, marine, and renewable energy industries by Neptune and its subsidiaries. The company was founded in 1959 and is headquartered in Singapore.