Kunimine Industries Co., Ltd. engages in the mining, manufacture, and sale of bentonite ore in Japan. It operates through the Bentonite, Clay Science, and Agriculture segments. The company also manufactures and sells industrial and agricultural chemicals, food and feed additives, water and wastewater treatment agents, and bentonite-based products for applications such as castings, civil engineering, pet toilet sand, cosmetics, and waste disposal. In addition, it designs, constructs, and operates plants for powder and granular material equipment, molding devices, and civil engineering equipment. Incorporated in 1943, the company is headquartered in Tokyo, Japan.