Shin-Nippon Kaiyosha is a marine business service company established on July 1, 2019 through the merger of Wing Maritime Service Co., Ltd. and Kaiyo Kogyo Co., Ltd., both of which are 100% owned by NYK Line. They have the largest tugboat fleet in Japan, and through close cooperation with affiliated companies in Hokkaido, Tohoku, Okinawa, etc., not only port towing work but also salvage work, salvage, ocean survey, or offshore.