Ansaldo STS SpA is an Italy-based technology company engaged the railway and underground transportation sector. The Company designs signals and rail transportation systems. The Company�s business activities are divided into two business segments: Signalling Unit and Transportation Solutions Unit. The Signalling Unit operates around designing and building rail and subway signaling systems and components through four operating companies such as Ansaldo STS SpA, Ansaldo STS USA, Ansaldo STS France and Ansaldo STS Australia. The Transportation Solutions Unit designs and produces integrated transport systems. It plans the integration of the design and construction of the technological elements that create the transport system, including equipment, signaling, power supply, telecommunications and rolling-stock, as well as any other technical items that, together with the foregoing, constitute an integrated transport system.