| Country | National Representative | Annual Activity Reports | 
| Australia | Taryn Noble, University of Tasmania Website: http://www.austracemarine.net
 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024,
 2025
 | 
| Argentina | Flavio Emiliano Paparazzo, CONICET | 2019, 2022, 2024 | 
| Belgium | Former contact: Frank Dehairs, Vrije Universiteit Brussel | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021 | 
| Brazil | Vanessa Hatje, Universidade Federal da Bahia Also please view the March 2015 Brazilian Workshop Final Statement
 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2023
 | 
| Canada | Erin Bertrand, Dalhousie University | 2010, 2011, 2013, 2014, 2015, 2016, 2017, 2018, 2019,2020, 2021, 2022, 2023, 2024,
 2025
 | 
| Chile | Rodrigo Torres Saavedra, Centro de Investigación en Ecosistemas de la Patagonia (CIEP) | 2020, 2022, 2023 | 
| China-Beijing | Dalin Shi, Xiamen University | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024,
 2025
 | 
| China-Taipei | Yu-Te Alan Hsieh, National Taiwan University | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,2020, 2021, 2022, 2023,
 2024, 2025
 | 
| Colombia | Luisa Espinosa, Instituto de Investigaciones Marinas y Costeras (INVEMAR) 
 | 2021, 2022, 2023 
 | 
| Croatia | Saša Marcinek, Ruđer Bošković Institute | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024,
 2025
 | 
| France | Hélène Planquette, LEMAR | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,2020, 2021, 2022, 2023,
 2024, 2025
 | 
| Germany | Walter Geibert, AWI-Bremerhaven | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
 2024, 2025
 | 
| India | Vineet Goswami, Physical Research Laboratory | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
 2024, 2025
 | 
| Ireland | Peter Croot, University of Galway | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
 | 
| Israel | Adi Torfstein, Hebrew University of Jerusalem | 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024, 2025
 | 
| Italy | Paolo Montagna, Institute of Polar Sciences (ISP-CNR) | 2012, 2014, 2015, 2020, 2022, 2023 | 
| Japan | Yoshiko Kondo, Nagasaki University Website: http://www.jodc.go.jp/geotraces/index.htm
 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2020, 2021, 2022,
 2023, 2024, 2025
 | 
| Kuwait | Intae Kim, Kuwait Institute for Scientific Research | 2016, 2018 | 
| Mexico | Francisco Delgadillo Hinojosa, Universidad Autónoma de Baja California | 2012, 2013, 2014, 2015, 2020, 2021, 2022, 2023, 2024, 2025
 | 
| Monaco | Peter Swarzenski, International Atomic Energy Agency, IAEA |  | 
| Namibia | Deon Louw, De Beers Marine Namibia (DBMN) | 2020 | 
| Netherlands | Caroline Slomp, Utrecht University | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
 2024, 2025
 | 
| Norway | Nicolas Sanchez, Norwegian Institute for Water Research (NIVA) | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 | 
| Nigeria | Margaret Ogundare, Federal University of Technology |  | 
| Poland | Agata Zaborska, Insitute of Oceanology, Polish Academy of Sciences | 2011, 2012, 2013, 2014, 2015, 2016, 2019, 2020, 2021 | 
| Russia | Dina Starodymova, Lisitzin Laboratory of Physical and Geological Researches, IO RAS Website:https://ocean.ru/index.php/component/k2/item/1520-russian-geotraces
 Also, see information about the GEOTRACES Russian Workshop.
 | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
 2024, 2025
 | 
| Slovenia | Nives Ogrinc, Jožef Stefan Institute | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,2020, 2021, 2022, 2024,
 2025
 | 
| South Africa | Tommy Ryan-Keogh, SOCCO, CSIR | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024,
 2025
 | 
| South Korea | Intae Kim, Korea Institute of Ocean Science & Technology (KIOST) | 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
 | 
| Spain | Juan Santos.Echeandía, IEO-CSIC | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
 2024, 2025
 | 
| Sweden | Isaac Santos, University of Gothenburg | 2010, 2011, 2013, 2014, 2015, 2016, 2017, 2018
 | 
| Switzerland | Gregory de Souza, ETH Zurich | 2020, 2021, 2022, 2023, 2024, 2025 | 
| Tunisia | Noureddine Zaaboud, National Institute of Marine Sciences and Technologies | 2015, 2019, 2020, 2021 | 
| Turkey | Mustafa Yucel, Middle East Technical University, Institute of Marine Sciences | 2020, 2021, 2022, 2023, 2024, 2025 | 
| United Kingdom | Alessandro Tagliabue, University of Liverpool | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
 2025
 | 
| United States | Bob Anderson, Lamont-Doherty Earth Observatory Website: https://usgeotraces.ldeo.columbia.edu/
 | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
 2024, 2025
 |