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In 2025, China made significant advancements in hydrogen pipeline transportation, marking a period of rapid development. Key projects include the Inner Mongolia Ulanqab to Beijing-Tianjin-Hebei hydrogen pipeline, a 1,132 km long inter-provincial line designed for high-pressure pure hydrogen transport, which passed safety reviews in December.

The Haitai New Energy Kangbao-Caofeidian pipeline, the first of its kind in China, began construction on October 28, with a length of 1,037.82 km and an annual capacity of 1.55 million tons. The Inner Mongolia section of the Ulanqab pipeline was approved in July.

Technological breakthroughs included new hydrogen-resistant pipeline materials developed by Benxi Steel and Baosteel. Policies supporting hydrogen pipeline development were also issued, including the National Energy Administration's guidelines for large-scale hydrogen transportation projects. These initiatives aim to facilitate the transition from gray hydrogen to green hydrogen in major regions.