Japan-Korea tunnelとBering Strait conceptA foundation that aims to contribute to the prosperity of the world by subsidizing research, research and development organizations, institutions, etc.

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The March issue of the on-site newsletter was published.

The July issue of the site newsletter summarizes the status of Tsushima's inclined shaft construction.

The wellhead was extended by 10m to reach 20m.

The length of the wellhead will be 7m-July issue of the site newsletter