The South Korean city of Ulsan produced over ** metric tons of hydrogen in 2022. This made Ulsan the highest hydrogen-producing region across the nation that year.
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Korea Hydrogen Alliance. (May 1, 2025). Production of hydrogen in South Korea in 2022, by region (in 1,000 metric tons) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 26, 2026, from /statistics/1615363/south-korea-hydrogen-production-by-region/
Korea Hydrogen Alliance. "Production of hydrogen in South Korea in 2022, by region (in 1,000 metric tons)." Chart. May 1, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 26, 2026. /statistics/1615363/south-korea-hydrogen-production-by-region/
Korea Hydrogen Alliance. (2025). Production of hydrogen in South Korea in 2022, by region (in 1,000 metric tons). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 26, 2026. /statistics/1615363/south-korea-hydrogen-production-by-region/
Korea Hydrogen Alliance. "Production of Hydrogen in South Korea in 2022, by Region (in 1,000 Metric Tons)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 May 2025, /statistics/1615363/south-korea-hydrogen-production-by-region/
Korea Hydrogen Alliance, Production of hydrogen in South Korea in 2022, by region (in 1,000 metric tons) ÌÇÐÄÆƽâ°æ, /statistics/1615363/south-korea-hydrogen-production-by-region/ (last visited July 26, 2026)
Production of hydrogen in South Korea in 2022, by region (in 1,000 metric tons) [Graph], Korea Hydrogen Alliance, May 1, 2025. [Online]. Available: /statistics/1615363/south-korea-hydrogen-production-by-region/
