OFFICES & GROUP COMPANIES
Kiyohara Sumiden, Ltd.
Manufacture and sales of optical fibers
Optical fibers are now indispensable for the construction of communication networks that support the advanced information society, such as the Internet and smart phones. Kiyohara Sumiden was established in 1996 as a 100% subsidiary of Sumitomo Electric Industries, Ltd. to manufacture and sell optical fibers, and has been contributing to the construction of information and communication infrastructures in Japan and around the world by mass-producing optical fibers of the highest quality using state-of-the-art facilities and cutting-edge technologies.
18-5, Kiyohara Industrial Park, Utsunomiya,Tochigi 321-3231 Japan