Yotai Refractories Co., Ltd. engages in the manufacture and sale of fire bricks and monolithic refractories, catalysts, clay for paper manufacturing, and engineering refractories. It operates through the Refractory and Engineering segments. The Refractory segment deals with manufacture and sale of refractory brick and monolithic refractory. The Engineering segment offers design and construction of environment and equipment of factories using refractory process. The company was founded on August 1, 1936 and is headquartered in Osaka, Japan.