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CONNECT

Connecting daily life and future happiness through its marine expertise,
i.e., SEKIKAIJI's Underwater Power
Since 1906—SEKIKAIJI, specializing in Submarine Cable Construction

Japan is an island nation scattered with variously sized islands, including 416 inhabited islands*.
Submarine cables support our daily lives and information networks.
SEKIKAIJI Industry is a company of specialists in submarine cable construction, continuously tackling the unique and complex marine conditions found throughout Japan’s maritime areas.
Our business territory covers the domains of communications, power, and water―the essential lifelines of our infrastructure.
Even now, at this very moment, we are connecting people’s lives, ensuring prosperity and security for the future. *Based on the number of inhabited islands from the 2020 National Census, including inquiries to prefectures and including the inland island of Okishima (Shiga Prefecture) (Source: Geospatial Information Authority of Japan)