Core Insights - The third Global Hadal Deep-Sea Biological and Geological Environment International Conference was held in Sanya, Hainan, from September 27 to 30, marking a significant event in the field of deep-sea research [1] - The United Nations' "Decade of Ocean Science for Sustainable Development" global hadal exploration program was officially launched during the conference, aiming to establish an international cooperation platform for sustainable development in deep-sea science [1] Group 1 - The conference served as an important sub-forum of the third Hainan Free Trade Port International Science and Technology Innovation Cooperation Forum and Deep-Sea Technology Innovation Conference (2025) [1] - It was the first meeting of the Global Hadal Exploration Program (GHEP) initiated and led by China, recognized as a decade activity by the United Nations, highlighting its significant international influence [1] - Over 70 research institutions and experts from more than 10 countries, including Denmark, Chile, and New Zealand, participated in the conference [1] Group 2 - The conference focused on three main themes: hadal geology, environment, and life sciences, featuring multiple specialized reports and discussions [1] - Topics included multidisciplinary basic research in hadal science, cutting-edge technologies for deep-sea exploration, and interdisciplinary applications [1] - Chinese scientists have completed manned scientific research in nine major global hadal trenches, achieving significant discoveries with the support of the Ministry of Science and Technology, the Chinese Academy of Sciences, and Hainan Province [2]