The US Department of Defence ⁠said on Monday ⁠it would invest US$25 million ⁠in rare earths start-up ReElement Technologies, part of a broader push by the Trump administration to boost domestic supplies of critical minerals and challenge ‌China’s dominance of the sector. ReElement aims to use a novel processing technology to refine rare earths and other critical minerals at its planned commercial facility in Marion, Indiana. The rare earths are expected to be used ⁠in magnets found in a range of...