Toyo Tanso Co., Ltd. engages in the production and sale of carbon materials in Japan and internationally. The company provides isotropic graphite products for use in semiconductor, mold, renewable energy, and atomic power industries; carbon-carbon composite materials for use in electronics, environment and energy, general industrial furnaces, automobiles, and other means of transport industries; and PERMA-FOIL, a flexible graphite sheet that is used as a seal to note automotive gaskets and packing. It offers mechanical carbon products, such as bearings, seal rings for mechanical seals, packing, vanes (blade), seal rings for joint seals, valve seats, contact strips for pantograph, resin-bonded carbon materials for mechanical applications, and press-to-size products; carbon brushes for home appliances and power tools; PERMA KOTE, a SiC coated graphite for use in the semiconductor manufacturing industry; PYROGRAPH, a high purity graphite product; and GLASTIX KOTE, a graphite substrate impregnated or coated with glass-like carbon. In addition, the company provides CNovel, a porous carbon; EVEREDKOTE-B, a high-purity isotropic graphite substrate; TaC/Ta Composite EVEREDKOTE-K, a high-purity tantalum; and KLASTA MATE, a metal-carbon composite. Further, it offers technical services, such as machining, heat treatment, high purity treatment, surface treatment, impregnation, forming, and measurement. The company was formerly known as Kondo Carbon Manufacturing Co., Ltd. and changed its name to Toyo Tanso Co., Ltd. in November 1949. The company was founded in 1941 and is headquartered in Osaka, Japan.