Kunimine Industries Co., Ltd. engages in the mining, processing, and selling of bentonite. It operates through the following segments: Bentonite Business, Agricultural Business, and Chemical Business. The Bentonite Business segment provides bentonite, mud conditioning agents, and water barriers for casting and civil engineering use. The Agricultural Business segment manufactures, processes, and sells agricultural chemicals, pesticides, soil improvement agents, and feed additives. The Chemical Business segment produces pure montmorillonite and environmental conservation treatment agents. The company was founded on June 1, 1943 and is headquartered in Tokyo, Japan.