The Electric Materials Company, also know as TEMCO, offers a range of copper products for customers in the electrical and transportation industries. Founded in 1915, the company provides a variety of contact wheels for trolleys. It operates through engineering, quality assurance, secondary machining, and copper casting and forging departments. The company offers in-house design and packaging services. It also provides extrusion, fabrication and brazing solutions. In addition, The Electric Materials Company offers manufacturing, machining and plating services. The company provides rotor bars and collector rings. It has achieved ISO 9001:2000 certification. The Electric Materials Company is a subsidiary of United Stars, which offers precision-engineered metal products.