The South Korean city of Ulsan had the longest hydrogen pipeline network across the nation in 2022 at around *** kilometers. The province of Jeonnam, or South Jeolla, had the second-longest network at nearly ** kilometers.
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Korea Hydrogen Alliance. (May 1, 2025). Length of hydrogen pipeline networks in South Korea in 2022, by region (in kilometers) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/1615384/south-korea-hydrogen-pipeline-network-length-by-region/
Korea Hydrogen Alliance. "Length of hydrogen pipeline networks in South Korea in 2022, by region (in kilometers)." Chart. May 1, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/1615384/south-korea-hydrogen-pipeline-network-length-by-region/
Korea Hydrogen Alliance. (2025). Length of hydrogen pipeline networks in South Korea in 2022, by region (in kilometers). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/1615384/south-korea-hydrogen-pipeline-network-length-by-region/
Korea Hydrogen Alliance. "Length of Hydrogen Pipeline Networks in South Korea in 2022, by Region (in Kilometers)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 May 2025, /statistics/1615384/south-korea-hydrogen-pipeline-network-length-by-region/
Korea Hydrogen Alliance, Length of hydrogen pipeline networks in South Korea in 2022, by region (in kilometers) ÌÇÐÄÆƽâ°æ, /statistics/1615384/south-korea-hydrogen-pipeline-network-length-by-region/ (last visited July 28, 2026)
Length of hydrogen pipeline networks in South Korea in 2022, by region (in kilometers) [Graph], Korea Hydrogen Alliance, May 1, 2025. [Online]. Available: /statistics/1615384/south-korea-hydrogen-pipeline-network-length-by-region/
