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Fujitsu has launched a demonstration experiment aimed at enhancing the value flow of green steel in Japan's steel industry, scheduled from December 2025 to February 2026. This initiative, part of the Ministry of Economy, Trade and Industry's FY2025 Industrial Research Project, will leverage blockchain technology to ensure secure data distribution and environmental value verification, supporting decarbonization and sustainable supply chain practices. Insights from the experiment will inform the development of green steel information distribution mechanisms and expand into the steel industry data space after 2026.