Holzheid, Astrid, Zhao, Hongbo, Cabus, Tony, Fan, Lei, Kuhn, Thomas, Sun, Linlin, Tao, Chunhui, Haeckel, Matthias, Hoang, Duong, Kelly, Norman, Kihara, Terue, Li, Bing, Li, Jiangtao, Ma, Ju, Matz-Lück, Nele, Meyn, Klaas, Molari, Massimiliano, Petersen, Sven, Pollmann, Katrin, and Rudolph, Martin
The first Sino-German workshop on "Deep-sea mining of massive sulfides: balancing impacts on biodiversity and ecosystem, technological challenges and law of the sea" took place from September 17 to September 23, 2023 in Changsha, Hunan Province, China. Four themes were covered by 20 impulse talks, (1) seabed resources and mineralization systems, marine geology and geochemistry, (2) microbiology and marine ecology, (3) deep-sea mining technology, mineral processing and extractive metallurgy, and (4) law of the sea and international law applicable to the marine environment in Areas Beyond National Jurisdiction, respectively. In round table discussions, the interdisciplinary understanding deepened regarding (i) the distribution of submarine massive sulfides (SMS), their formation mechanisms and the abundance of SMS resources, (ii) the biodiversity linked to SMS and hydrothermal vents and the environmental protection requirements, (iii) the challenges of mining technology and processing of SMS, as well as (iv) the legal framework, the regulatory challenges, the international environmental liability regime and due diligence obligations for commercial seabed mining. The participants covered all four themes and are affiliated with various universities, research institutions, and governmental geoscientific authorities from China (seven) and Germany (six). During the workshop, a number of recommendations to ISA were defined regarding environmental, methodological, technical, and legal issues. [ABSTRACT FROM AUTHOR]