Coltan Traceability in the Democratic Republic of the Congo: Between Governance Imperatives, Technological Challenges, and Geopolitical Tensions. What Solutions for Ethical and Sustainable Mining? RDI [Internet]. 7 de abril de 2025 [citado 15 de septiembre de 2026];21(3). Disponible en: https://publicacoesacademicas.uniceub.br/rdi/article/view/9899