South Korea's top three shipbuilders and two steelmakers, in collaboration with the Korean Register, have formed a strategic R&D alliance to secure leadership in the liquefied hydrogen (LH2) carrier market. This alliance aims to address the technical challenges of transporting hydrogen, focusing on developing material testing for liquefied hydrogen ships. The design and construction of 'liquefied hydrogen cargo holds' are crucial technologies for LH2 carriers. The primary goal of the alliance is to research and verify material properties for withstanding extreme temperatures. The lack of international standards in this field has led to fierce competition globally, prompting the alliance to share experimental results and work towards international standardization. Past challenges in South Korea's shipbuilding industry have highlighted the importance of overcoming design flaws and achieving technological independence. The collaboration between shipbuilders and the steel industry aims to enhance Korea's technological competitiveness. By developing liquefied hydrogen cargo holds using domestic technology, South Korea plans to set new standards and lead in the global transition to sustainable energy. The alliance's efforts will lay the foundation for South Korea to dominate the next-generation hydrogen carrier market, driving innovation and potentially creating economic opportunities.