Bentonite is a special clay mineral that is also said to have "1000 potential applications" and its applications are currently in the fields of casting, civil engineering, preparation for excavation, cat sand, soil improvement, agricultural chemicals, fertilizers, medicines, cosmetics , Functional resins ... and used in industries in various fields and spread to every corner of our lives. The encounter between us and bentonite was 1968. It goes back to the time when Nissho Iwai Co., Ltd. (present · Sojitz Corporation) started trading with ACC (American Colloid Co.) which is the predecessor of Amcor Corporation. Since then, we have consistently worked on importing and selling Volckclay Bentonite R and related products. Meanwhile, in 1983, Nissho Iwai Bentonite Co., Ltd. was established as a wholly owned subsidiary of Nissho Iwai with the aim of building a more detailed sales structure in the domestic market. Subsequently, in accordance with the transition to Sojitz Corporation and Sojitz International Co., Ltd., the world's largest bentonite manufacturer in 2004, the company name has been changed to current Volkrae Japan Co., Ltd., and it has reached today . We are engaged in the crushing and supply of imported bentonite for the casting industry, with high performance waterproofing materials, underground waterproofing materials and environmental restorative materials made from bentonite and resin for the civil engineering, construction and waste disposal industry We are importing and selling. We also sell products using bentonite and minerals with special functions for high value added fields.