SUMITOMO ELECTRIC Hartmetall GmbH develops and manufactures a comprehensive range of cutting tool materials, Carbide, Cermet, SUMIBORON (CBN), and SUMIDIA (PCD). Our headquarters in Willich near Düsseldorf / Germany organizes the sales, logistics, and marketing for Europe, the Middle East, and Africa. Our customers are guaranteed competent technical advice via our highly qualified consultants and application engineers. Our European production facilities are located in southern Germany (Lauchheim) and the Czech Republic (Jihlava).