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Minerals glossary

DFARS 252.225-7052

Also called 252.225-7052, 10 U.S.C. 4872, 10 U.S.C. 2533c

The US defense contract clause barring NdFeB and samarium-cobalt magnets, tantalum and tungsten from China, Russia, Iran and North Korea. From 1 January 2027 it covers every stage from mining to finished product.

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