Singapore Technologies Engineering Ltd. is an investment holding company, which engages providing solutions and services in the aerospace, electronics, land systems, and marine sectors. It operates through the following business segments: Commercial Aerospace, Urban Solutions and Satcom, and Defence and Public Security. The Commercial Aerospace segment refers to the airframe, engines, and components maintenance. The Urban Solutions and Satcom segment relate to smart mobility, smart utilities, and infrastructure. The Defence and Public Security segment is involved in defence, public safety and security, critical information infrastructure solutions, and others. The company was founded in 1967 and is headquartered in Singapore.