Yotai Refractories Co., Ltd. engages in the manufacture and sale of refractories and new ceramics, as well as related engineering business in Japan. The company operates through Refractories and Engineering segments. It offers refractories that are used for high-temperature treatments, such as melting and baking in the manufacturing processes for steel, cement, and copper, as well as f environmental systems and other electronic parts. The company is also involved in the provision of design, furnace construction, and supervisory, as well as post-construction maintenance services. The company was formerly known as Osaka Yogyo Fire Brick Co., Ltd. and changed its name to Yotai Refractories Co., Ltd. in June 1987. Yotai Refractories Co., Ltd. was incorporated in 1936 and is headquartered in Kaizuka, Japan.