|Siemens AG is a globally operating technology company with core activities in the fields of energy, healthcare, industry and infrastructure. Siemens business activities focus on four Sectors, Energy, Healthcare, Industry and Infrastructure & Cities. These Sectors form four of Siemens reportable segments. In addition to the four Sectors, Siemens has two additional reportable segments: Equity Investments and Siemens Financial Services (SFS). The Sector Energy comprises four Divisions: Power Generation, Wind Power, Power Transmission and Energy Service. The Healthcare Sector includes four Divisions: Imaging & Therapy Systems, Clinical Products, Diagnostics and Customer Solutions; and one sector-led Business Unit, Audiology Solutions. The Industry Sector consists of three Divisions: Industry Automation, Drive Technologies and Customer Services; and one sector-led Business Unit, Metals Technologies. The Sector Infrastructure & Cities consists of five Divisions: Rail Systems, Mobility and Logistics, Low and Medium Voltage, Smart Grid, and Building Technologies. In July 2013 Siemens sold its stake in the Nokia Siemens Networks (NSN) joint venture to Nokia and OSRAM Licht AG was spun off from Siemens.