Andrés del Castillo is the Senior Attorney for the Environmental Health Program of the Center for International Environmental Law (CIEL) since 2020, supporting the Plastics Treaty Negotiations, by providing support to Governments on the legal aspects of a legally binding instrument. He is also a member of the ILA Committee on Business and Human Rights.

Andrés joined CIEL with more than eight years of experience in engaging with UN human rights monitoring institutions and multilateral environmental negotiations, as well as several years working in private sector and insurance law. He is an expert on Indigenous Peoples’ rights with a strong background in climate change, the environment, and business and human rights. His past work includes a mix of legal advising and strategic engagement with organisations like the European Union, the UN Global Compact, the UN Human Rights Office (OHCHR), the World Bank, and the World Economic Forum. He came to CIEL from the Indigenous Peoples’ Documentation Centre (Docip), where he spearheaded the process to be recognized by UNESCO as World Documentary Heritage, granted in 2017.

Andrés holds a bachelor’s degree in Law and from the University of the Sabana in Colombia, a Special Certificate in the master’s program in International Law from the Universidade Federal do Rio Grande do Sul in Brazil, a Higher University Diploma in Law of the European Union, and a master’s degree in International Administration Law from the Université Panthéon – Assas (Paris II) in France.