Mersen S.A. manufactures and sells electrical power products and advanced materials across France, North America, Europe, Asia-Pacific, and other international markets. It operates through two segments: Electrical Power and Advanced Materials. The company offers a wide range of products including fuses, surge protection, capacitors, graphite materials, heat exchangers, carbon brushes, and power transfer systems, along with services such as simulation tools, maintenance, and training. It serves industries such as semiconductors, electric vehicles, renewable energy, railways, aerospace, chemicals, and electrical power distribution. Formerly known as Groupe Carbone Lorraine SA, it changed its name to Mersen S.A. in May 2010. Founded in 1889, Mersen S.A. is headquartered in Courbevoie, France.