Sado Steam Ship

Sado Steam Ship Co., Ltd. (佐渡汽船株式会社) is a marine transportation company based in Sado, Niigata, Japan, founded as Sado Shosen on February 3, 1913. And, in 1932, this company was established by merging three ferry companies that Sado Shosen, Etsusa Shosen and Niigata Kisen into Sado Kisen as a joint public-private venture for the first time in Japan. On March 31, 2022, a 66.54% of this company's shares are transferred to Michinori Holdings. Now, this company belongs to Michinori Holdings.

Routes
Sado Steam Ship has two routes which connect the mainland to Sado Island.
 * Niigata – Ryotsu
 * Naoetsu – Ogi (From spring to autumn)

Former routes

 * Teradomari – Akadomari

Terminals
Sado Steam Ship operates from six terminals.
 * Niigata port terminal
 * Located in Chūō-ku, Niigata (37.9298°N, 139.0622°W)


 * Naoetsu port terminal
 * Located in Jōetsu (37.1825°N, 138.2508°W)


 * Teradomari port terminal
 * Located in Nagaoka (37.6404°N, 138.7624°W)


 * Ryotsu port terminal
 * Located in Sado (38.0816°N, 138.4382°W)


 * Ogi port terminal
 * Located in Sado (37.8162°N, 138.2824°W)


 * Akadomari port terminal
 * Located in Sado (37.8666°N, 138.4123°W)

Fleet
, the following ships are in service.