You are using an outdated browser For a better experience using this site, please upgrade to a modern web browser. Subscribe Get Daily Email Subscribe --> Contact Us Sign in Home News & Features Compliance Costs Bunker Prices Bunker Intelligence World News Latest Features World Americas EMEA Asia/Pacific Home News & Features World HHI Completes Sea Trial of Korea's First Ammonia Dual-Fuel Vessel HHI Completes Sea Trial of Korea's First Ammonia Dual-Fuel Vessel by Ship & Bunker News Team Tuesday July 14, 2026 Tweet Follow @shipandbunker HD Hyundai Heavy Industries' Ammonia Dual-Fuel Vessel. Image Credit:HHI HD Hyundai Heavy Industries completes sea trial of Korea 's first ammonia dual-fuel vessel Work falls under the Ministry of Oceans and Fisheries ' Green Shipping Corridor Construction Support Project KR to use operational data in developing domestic ammonia vessel guidelines HD Hyundai Heavy Industries  says it has completed a sea trial of Korea 's first ammonia dual-fuel propulsion vessel, working with classification society Korean Register ( KR ) to establish a domestic operating environment for ammonia-fuelled ships. The collaboration falls under the Ministry of Oceans and Fisheries ' Green Shipping Corridor Construction Support Project . The trial generated operational data on the vessel's fuel supply system and engine. KR says that data will provide a technical foundation for its development of domestic guidelines for environmentally friendly vessel operations, and will support wider maritime decarbonisation efforts. "Drawing on our group's R&D capabilities and on-site technical expertise, we have made meaningful progress in advancing the application of ammonia as a marine fuel," a spokesperson for HD Hyundai said in an emailed press release. "We expect this to help enhance a sustainable maritime ecosystem while strengthening the competitiveness of Korea's shipbuilding industry." "The close collaboration between KR and HD Hyundai has enab