At the Awards Conferral Ceremony of the 2022 Annual Symposium, the 20th Hangai Prizes were conferred to the following winners, who all later presented their papers at the symposium:

• Kazuki HAYASHI (Japan): "Assembly sequence optimization of spatial trusses using graph embedding and reinforcement learning"
• Yao LU (USA): "A Method for Designing Multi-layer Sheet-Based Lightweight Funicular Structures"
• Jiaming MA (Australia): "PrintNervi – Design and construction of a ribbed floor system in the digital era"
• Kanata WARISAYA  (Japan): "Freeform auxetic mechanisms based on corner-connected tiles"

Their papers will not only appear in the Proceedings of the 2022 Symposium but will also be published in the December 2022 issue of the Journal of the IASS.