ReElement secures key expansion funds

Private capital backs tech scale-up amid China's rare earth curbs.

With new U.S. investment valuing the company at $150 million and fresh equipment headed to its Indiana facilities, ReElement Technologies Corp. is ramping up domestic refining of rare earth and defense-critical minerals at a time when tightening Chinese export restrictions are straining U.S. supply.

Raised through a $20 million con...