Tin, tantalum, tungsten, and gold mined in the Democratic Republic of Congo fund armed groups; US and EU law require importers to trace and disclose their supply chains.
Rare transition metal essential to capacitors in every smartphone, server, and weapon system; over 60 percent of global supply comes from artisanal mining in conflict-affected eastern DRC.
詳細ファイル ›A transition metal of which Brazil controls roughly 90% of world supply, niobium is the critical additive in high-strength steels used globally in cars, pipelines, and construction.
2026年1月28-29日、北キブ州ルバヤの地滑りで220人超の零細採掘者が死亡。OFACは3月にルワンダ国防軍を制裁対象に指定。タンタルコンデンサ価格はAIサーバー需要で15-30%上昇。CBMMとEchionは年産2000トンのニオブ負極施設を開設