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Joint Development with HHI and SHI Tokyo - September 08, 2025
In addition, safety evaluations were conducted in collaboration with the respective flag states. As a result, this new vessel design, one jointly developed with HD Hyundai Heavy Industries Co., Ltd. (HHI; Headquarters: Ulsan, South Korea) has earned AiP from the Marshall Islands (Marshall), and the other vessel design jointly developed with Samsung Heavy Industries Co., Ltd. (SHI; Headquarters: Seoul) AiP from Liberia. 
CG rendering of the new ship design featuring four Wind Challenger units. Image by MOL.
For the new vessel designs developed with HHI and SHI, we conducted comprehensive risk assessments in collaboration with the shipyards, the classification society, and flag states. These assessments covered the sail arrangement, visibility impact, emergency operation procedures, and other safety measures. Based on the results, we successfully obtained the AiP. MOL will exhibit the new vessel design at the Gastech Exhibition & Conference 2025 in Milan from the 9th to 12th September. At its booth, MOL plans to showcase exhibits related to the new vessel design and hold a commemorative ceremony for the AiP award in collaboration with the shipyards, the classification society, and the flag states (Note 4). The MOL Group has set "Achieving net zero greenhouse gas (GHG) emissions by 2050" in its medium-to-long-term target of the "MOL Group Environmental Vision 2.2." The Wind Challenger, a rigid sail system capable of automatic extension, retraction, and rotation, is one of the key low- and zero-emission technologies supporting this vision. By harnessing wind power while maintaining safe navigation, the system contributes to a reduction in fuel consumption and GHG emissions. MOL plans to install Wind Challengers on 25 vessels by 2030 and on 80 vessels by 2035. To date, two vessels have been delivered, and installation has been confirmed for an additional nine vessels (Note 5). Through the safe management and efficient operation of the group's environmentally friendly fleet, which incorporates wind propulsion technologies including the Wind Challenger, it reduces GHG emissions by the group and makes a significant contribution to the decarbonization of society as a whole. Vessel specification 
(Note 1) For details, please refer to "Wind Challenger, The Wind Assisted Ship Propulsion System" | Service | Mitsui O.S.K. Lines (MOL) Solutions (mol-service.com) (Note 2) For details, please refer to MOL Obtains AiP for "LNG Carrier Installing Wind Challenger" - The World's First Approval for an LNG Carrier -. The LNG carrier designed under this approval is currently under construction for delivery to Chevron Shipping Company LLC and Tokyo LNG Tanker Co., Ltd., a wholly owned subsidiary of Tokyo Gas Co., Ltd. (MOL and Chevron Shipping Company to Install Wind Challenger on LNG Carrier Wind-Assisted Ship Propulsion Systems is an LNG Shipping First | Mitsui O.S.K. Lines / Install Wind Challenger Hard Sail Propulsion Systems on LNG Carrier Serving Tokyo Gas | Mitsui O.S.K. Lines) (Note 3) Results based on the North America-Europe route. Outcomes may vary significantly depending on conditions such as the assumed route, ship speed, and meteorological and oceanographic conditions. (Note 4) Details of the ceremony are as follows. AiP award ceremony 
(Note 5) This new vessel design is not included among the nine vessels for which Wind Challenger installation has already been confirmed. Mitsui O.S.K. Lines, Ltd. press release 
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