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.
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.
完整档案 ›A transition metal that hardens steel rebar and stores renewable electricity in flow batteries, with China controlling roughly 60% of global supply as of mid-2026.
2026年1月28-29日北基伍省卢巴亚滑坡造成220余名手工矿工死亡；OFAC于3月制裁卢旺达国防军；钽电容器价格因AI服务器需求上涨15-30%；CBMM与Echion开设年产2000吨的铌负极工厂