Bokuto Rubber Industrial Committee:
- Kinsei Rubber Industry Co., Ltd.: Molded articles of Perfluoro Rubber
- Hotty Polymer Co., Ltd.: "Sube up" and other original extrusion molding products.
- Shimoda Rubber Industry Co., Ltd.: Ultrathin Rubber Sheet (under 1mm)
- Ukawa Rubber Mfg. Co., Ltd.: Material/Parts for Automotive, OA, Factory Automation, Construction, Railway and variety of Industries.