Osaka Bay's first LNG (liquefied natural gas) tugboat, "Ishin" was completed at Kobe Port on February 27, 2019 and since March 2020, has been working in Osaka Bay and the Seto Inland Sea guiding large vessels in the area. The tugboat was completed by Mitsui O.S.K Lines., Ltd. (MOL) a major shipping company in Japan, less than two years after the decision was made to commence construction in 2017. Yanmar supplied two marine dual fuel engines (6EY26DF), as well as the fuel supply system which included the LNG fuel tank, buffer tank, and gas fuel device. Kanagawa Shipbuilding Co., Ltd., the largest tugboat manufacturer in Japan was involved in the construction, and Nippon Tug-boat Co., Ltd., a group company of MOL handles operation. MOL and Osaka Gas Co., Ltd. will establish the first LNG fuel supply system for ships in Osaka Bay at Sakai Senboku Port, and LNG fuel will be supplied truck-to-ship from an LNG tanker on the land side.