The core activity of Mersen is the development and supply of electrical specialties and advanced materials for the high-tech industry. This includes in particular the areas of: developing customized solutions for customers, supplying key products for the high-tech industry, manufacturing products such as busbars, isostatic and extruded graphite, DC protection for electric vehicles and batteries, and applying products in various markets such as semiconductors, electric vehicles, energy storage, solar energy, wind power, railways and subways, aerospace, chemicals, buildings and infrastructure, power generation, transmission and distribution. Additionally, the company offers services such as simulation tools, on-site service, power stack design optimization, motor maintenance, professional training, and electrical testing laboratory.