Kazuo Hatanaka

Kojitusanso Co., Ltd. engages in selling mountain climbing gear and other outdoor activity tools. Its operations are carried out through the Mountain Climbing Gear Marketing Business and Other Business segments. The Mountain Climbing Gear Marketing Business segment sells mountain climbing gear and other outdoor activity tools through shops and web sites. It also operates climbing gyms. The Other Business segment leases, buys, sells, and manages real estate properties. The company was founded by Kenji Sasaki on June 1, 1963 and is headquartered in Tokyo, Japan.

Tokyo Ryutsu Center, Inc. manages and leases buildings and building spaces for logistics, office and exhibition use. It also manages and operates parking facilities. The company was founded on November 13, 1967 and is headquartered in Tokyo, Japan.

Part of DIC Corp., DIC (China) Co. Ltd. is a Chinese chemical production company with the largest market share in printing inks, organic pigments, and PPS compounds globally. The company is based in Shanghai, China. DIC specializes in the production of polyurethane resins, which are polymers produced by the copolymerization of polyols and isocyanates. These resins are widely used in various fields such as fiber, film, and metal bonding due to their high adhesion and impact resistance, as well as their ability to design polymers with various characteristics. The company's website provides a list of its products and materials related to functional materials.