The steel industry, responsible for 7% of global carbon emissions, is actively seeking ways to decarbonize. Nippon Steel's recent achievement of cutting emissions by 43% through green hydrogen showcases a significant step towards low-carbon steel production. Despite this success, challenges like scalability and the high costs of hydrogen are hindering widespread commercialization. In China, Baowu Steel has made strides in reducing emissions by more than 20% and is making progress in commercializing green hydrogen technology. South Korea's POSCO is also joining the green revolution by setting a target to launch hydrogen-based DRI steelmaking by 2028, aiming to further decrease carbon emissions in the industry. While Japan may be trailing behind Europe, China, and South Korea by 5-10 years in DRI commercialization, the race for leadership in green steel production is gaining momentum, showcasing a global push towards sustainable steel manufacturing.