SGL Carbon SE operates as a holding company, which engages in the manufacture of carbon and graphite products. It operates through the following segments: Performance Products, Graphite Materials and Systems, and Carbon Fibers and Composites. The Performance Products segment produces electrodes, cathodes, and furnace linings. The Graphite Materials and Systems segment supplies expanded graphite products for industrial applications and machine components, products for the semiconductor industry, composites, and process technology. The Carbon Fiber and Composites segment offers carbon fiber, carbon fiber-based fabrics, composites, and structural components. The company was founded in 1878 and is headquartered in Wiesbaden, Germany.