equipo_jdh03
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Member of the Board of Directors of the Asociación Española para el Estudio del Derecho Europeo (since 1999).
Member and former Secretary of the Asociación Española de Profesores de Derecho International y Relaciones Internacionales.
Member of the European Society of International Law.
Member of the Club Español del Arbitraje.
Member of The World Academy of Art and Science.
Member of the Madrid Bar Association (since 1982).
Member of the Arbitration Panel under the Agreement on the Withdrawal of the United Kingdom from the European Union (EU) (Decision No. 7/2020 of the Joint Committee established by the Withdrawal Agreement).