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REalloys, U.S. Critical Materials sign MoU to build domestic rare earth supply chain

By Thomson Reuters Apr 1, 2026 | 9:24 AM

April 1 (Reuters) – Rare earths developers REalloys and U.S. Critical Materials Corp have signed a memorandum of understanding to ​build a fully domestic supply chain ‌for the key materials in the U.S., in line with Washington’s aims to reduce reliance on China.

Under the agreement, REalloys will secure up to 10% ‌offtake ​from the U.S. Critical ⁠Materials-owned Sheep Creek rare ⁠earth deposit in Ravalli County, Montana.

The U.S. has been escalating efforts to reduce dependence on China for the critical materials, ​such as instituting tighter procurement rules, prompting a rush among miners and processors ⁠to build domestic rare ⁠earth supply chains.

The Sheep Creek deposit ​contains high concentrations of elements such as dysprosium ​and terbium, which are used to ‌power high-performance permanent magnets in F-35 fighter aircraft, missile guidance systems and radar platforms, the companies said.

“We are identifying the strategic ⁠assets that plug into our advanced midstream and downstream ecosystem to fortify supply chain security for protected ⁠and strategic ‌markets, with zero Chinese involvement ⁠at any stage,” said Lipi ​Sternheim, ‌CEO of REalloys.

REalloys and U.S. Critical ​Materials also ⁠said they would advance test work to improve heavy rare earth processing and seek to finalize a long‑term offtake deal within one year.

(Reporting by Sumit Saha in Bengaluru; Editing by ​Jonathan Ananda)