Toyo Tanso Co., Ltd.

Toyo Tanso Co., Ltd. is a Japanese manufacturer specializing in the production and sale of advanced carbon materials for diverse industrial applications worldwide. Founded in 1941 as Kondo Carbon Manufacturing Co., Ltd. and renamed in 1949, the company is headquartered in Osaka and employs approximately 1,785 people. Its primary products include isotropic graphite for semiconductors, molds, renewable energy, and atomic power sectors; carbon-carbon composites for electronics, energy, furnaces, automobiles, and transportation; and PERMA-FOIL, a flexible graphite sheet used in automotive gaskets and seals. Toyo Tanso also produces mechanical carbon items like bearings, seal rings, vanes, and carbon brushes for appliances and tools, alongside specialized coatings such as PERMA KOTE for semiconductor manufacturing and PYROGRAPH high-purity graphite. Innovative materials like porous CNovel, high-purity EVEREDKOTE-B substrates, tantalum composites, and metal-carbon KLASTA MATE further expand its portfolio. The company provides essential technical services including machining, heat treatment, purification, and measurement, playing a critical role in high-tech industries reliant on durable, heat-resistant carbon solutions.