Core Viewpoint - The Chinese Academy of Sciences' Institute of Physics and Chemistry showcased its hydrogen energy industry chain based on liquid hydrogen technology at the third China International Supply Chain Promotion Expo, highlighting its innovative contributions to the hydrogen energy sector [5][6]. Group 1: Hydrogen Energy Industry Chain - The showcased hydrogen energy industry chain includes renewable wind and solar energy hydrogen production, hydrogen liquefaction, liquid hydrogen storage and transportation, and hydrogen energy applications [5]. - Liquid hydrogen technology is crucial for the storage and transportation of hydrogen, addressing economic and safety challenges in the large-scale development of the hydrogen energy industry [5]. Group 2: Technological Innovations and Collaborations - The hydrogen liquefaction technology developed by the Institute is a result of collaborative efforts among generations of scientists, achieving breakthroughs in key core technologies and industrial transformation [5]. - Key patented technologies have been successfully applied in commercial aerospace launches, superconducting technologies, and large scientific installations, promoting the development of the refrigeration industry and involving numerous upstream and downstream advanced manufacturing enterprises [5]. Group 3: Strategic Partnerships and Future Directions - The Institute aims to grow alongside its partners in the hydrogen energy industry chain and actively explore applications in the "Belt and Road" ecological cooperation area [6]. - The third Supply Chain Expo features six major chains, including advanced manufacturing, clean energy, smart vehicles, digital technology, healthy living, and green agriculture, with a newly established innovation chain section in the advanced manufacturing area [6].