SGL Carbon SE, together with its subsidiaries, manufactures and sells special graphite, carbon fiber, and composite products in Germany, rest of Europe, the United States, China, rest of Asia, and internationally. The company operates through four segments: Graphite Solutions, Process Technology, Carbon Fibers, and Composite Solutions. It offers products for automotive industries, including body and main part powertrains, motor blocks, and brake systems; carbon-ceramic brake discs; friction materials; gas diffusion layers and bipolar plates; carbon-ceramic brake discs; body shell components; friction materials; chassis components; gas diffusion layers and bipolar plates; and sealing materials. The company also provides composite solutions, such as energy storage systems, lead springs, skins and structures, thermoplastic profiles, and friction components; fuel cells for energy conversion, as well as for passenger cars and trains, and ferries for zero emission mobile applications; and carbon fiber-reinforced plastics and composites for aerospace industry. In addition, it offers isostatic graphite to produce compound semiconductor layers; silicon carbide coatings for semiconductor production; and heat exchangers, columns, quenchers, pumps, components and assemblies, and pipings, as well as sealing materials for process technology. The company was founded in 1878 and is headquartered in Wiesbaden, Germany.