Apple has signed a $500-million deal with Pentagon-backed MP Materials for a supply of rare earth magnets, one of the first U.S. tech companies to ink an agreement that aims to centralize its supply chain inside the country.

The moves by Apple and the Pentagon are part of a broader U.S. push to nearshore rare earth supply chains. Earlier this year, President Trump proposed annexing Greenland, an autonomous Danish territory estimated to contain $4.4 trillion worth of rare earth reserves. Vice President JD Vance made a surprise visit in support of the plan.