Singapore Technologies Engineering Ltd. is a holding company, which provides engineering and related services. It operates through the following segments: Aerospace, Electronics, Land Systems, Marine, and Others. The Aerospace segment provides spectrum maintenance and engineering services that include air-frame, engine and component maintenance, repair and overhaul, engineering design, development, and technical services; and aviation materials and management services, including total aviation support. The Electronics segment delivers system solutions to government, commercial, defence, and industrial customers. The Land Systems segment provides design and engineering services, manufacture, sales and know-how transfer of military and commercial vehicles, automotive subsystems, robotic systems, armament, weapons, weapon systems, ammunition and explosives. The Marine segment provides turnkey building, repair, and conversion services for a naval and commercial vessel.