The US could break its dependence on China for many critical minerals if metals found in the waste from existing American mines were used rather than discarded, new research has found.
The US is among a growing number of countries racing to secure more independent supplies of metals including copper, lithium and nickel — which are essential for a broad range of industries, from energy to technology and defence.
China has invested heavily in the sector for two decades and dominates the supply chains for many critical minerals.
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