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How the US defence industry dodged a rare earths shortage after China’s curbs

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A rare-earth factory, owned by Solvay, in La Rochelle, France, on June 19, 2025.

A rare earths factory, owned by Solvay, in La Rochelle, France.

PHOTO: DMITRY KOSTYUKOV/NYTIMES

Farah Stockman

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WASHINGTON - Tomahawk missiles are coveted by militaries around the world because they can hit a target about 1,600km away.

That accuracy is possible because their fins use powerful magnets made of samarium – a rare earths metal that can tolerate high heat.

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