Dense pink corals inhabit seamount at 1800m

The Issue: Deep-seabed mining is rapidly approaching the transition from exploration to exploitation in our world’s oceans, both in areas within and beyond national jurisdiction. Proactive development and implementation of comprehensive management practices, frameworks and policies prior to the onset of commercial mining will ensure protection and preservation of the marine environment, whilst enabling the use of seabed mineral resources. Transparent criteria for deep-sea institutional and corporate social responsibility also need to be established.

The Working Group: The DOSI Minerals working group (175 members) constitutes a broad spectrum of scientific, industry, economic, conservation, legal and policy expertise. As collated working group responses and as individuals, we provide expert opinion on deep-seabed mining related concerns through written responses, policy briefs, publications, side-events, interventions, workshops and symposia.

Current Activities:

  • DOSI is committed to actively participating in the proceedings of the ISA, as well as to ensuring our strong representation in relevant workshops on the environmental planning and management of the Area. There are a number of upcoming deep-seabed mining workshops and meetings, which we anticipate many of the DOSI Minerals working group will attend:
    • Deep CCZ Biodiversity Synthesis Workshop – Washington, USA – 1-4 October 2019
    • Scientific Considerations for Environmental Management of Inactive Polymetallic Sulfide (PMS) Ecosystems – Galway, Ireland – 22-24 October 2019.
    • Workshop on Strategic Approaches to Developing Regional Environmental Management Plans – Hamburg, Germany – 11-13 November 2019
    • International Conference on Legal, Scientific and Economic Aspects of Deep Seabed Mining – Kingston, Jamaica – 14-16 November 2019. Registration open. For more information, contact Katie Elles (
    • Workshop on the Regional Environmental Management Plan for the Area of the Northern Mid-Atlantic Ridge – Evora, Portugal – 25-29 November 2019. Calls for nominations of experts to attend is open until 31 August, and scientific information until 30 September.
    • Workshop on Marine Scientific Research in the Area: Establishing Collaborative Platform for Improving Biodiversity Knowledge to Support Environmental Management in Mid-Ocean Ridge Ecosystems – Hong Kong, China – 18-20 December 2019
    • Workshop on developing a Regional Environmental Management Plan (REMP) for the NW Pacific Cobalt-Crust Area – Korea – February 2020
    • First Part of 26th Session of the ISA – Kingston, Jamaica – Likely 17-28 February 2020
    • International Geologic Congress – session on seabed resources and EIAs – India –  March 2-8 2020
    • Workshop on developing a REMP for the Northern Mid-Atlantic Ridge – Russia – June 2020
    • Second Part of 26th Session of the ISA – Kingston, Jamaica – Likely 13-31 July 2020
    • Workshop on developing a REMP for the Indian Ocean – India – Q3, 2020
  • DOSI will continue to work directly with country delegates and other stakeholders to assist with deep-seabed-mining matters within national jurisidictions.
  • DOSI Deep-Sea Mining Library: with the generous help of Daniëlle de Jonge, deep-sea stakeholders now have a comprehensive library on a variety of aspects of deep-seabed mining. Please contact us with new additions. Short manual for using the DOSI Zotero here.

Past Activities (in reverse chronological order):

  • The ISA  invited comments on the latest iteration of the Draft Exploitation Regulations, which can be found here: DOSI members compiled a commentary – October 2019.
  • July 2019: DOSI attended the Pew-RESOLVE Workshop “ISA Inspections and ISA Inspectorate: What will be Needed?” Irish Town, Jamaica

  • July 2019: DOSI attended the second part of the ISA 25th Session, presenting two new policy briefs, delivering eight interventions, and co-hosting a scientific side event.  The DOSI delegation consisted of Diva Amon, Lisa Levin, Anna Metaxas, Pradeep Singh, Eulogio Soto, Maila Guilhon and Sergio Cambronero.
  • June 2019: DOSI hosted ‘Deep-Ocean Climate Connections’, an expert workshop on climate change and deep-seabed mining at Scripps Institution of Oceanography, USA.
  • May 2019: DOSI Minerals WG members submitted a Commentary on the “Draft High Level Action Plan and Priorities and the Report of the Secretary-General on the Implementation of the Strategic Plan for the International Seabed Authority: Draft Performance Indicators for the 2019-2023 period” issued earlier this year.
  • May 2019: The ISA workshop, “The Development of Standards and Guidelines for Activities in the Area”, hosted in Pretoria, South Africa was attended by Diva Amon and Amber Cobley on behalf of DOSI.

Early career scientists Maila Guilhon (Brazil) and Sergio Cambronero (Costa Rica) representing DOSI at ISA

  • February 2019: DOSI attended the first part of the ISA 25th Session, presenting three policy briefs, delivering four interventions and hosting a side event. The DOSI delegation consisted of Jeff Drazen, Aline Jaeckel, Julie Huber, Verena Tunnicliffe, Philip Turner, Jessie Perelman and Diva Amon.
  • February 2019: DOSI WG member paper published: Tunnicliffe et al (2019) Strategic Environmental Goals and Objectives: Setting the basis for environmental regulation of deep seabed mining. Marine Policy