As Washington races to build a rare earth supply chain that can survive the Pentagon’s 2027 ban on Chinese-origin materials, REalloys (NASDAQ: ALOY) has locked in long-term supply from one of the largest known heavy rare earth deposits in the world. The company announced last Thursday that it has signed a definitive 15-year offtake agreement with Critical Metals Corp. (NASDAQ: CRML) covering 15% of Phase 1 production from the Tanbreez project in southern Greenland, a massive heavy rare earth deposit containing Dysprosium and Terbium, the…