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

The October issue of the on-site newsletter summarizes "Sumo Base".

There is a plan that the Sumo base will become the gateway to Japan as an underground station terminal in Tsushima.

 

Introducing the Sumo base in the forest of the famous peak "Shiratake" which is the symbol of Tsushima.

 

Tsushima's central inclined shaft "Sumo base" appears-October issue of the site news

 

  • The December issue of the on-site newsletter has been published ...

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