REalloys, which is in the process of merging with Blackboxstocks Inc. (NASDAQ: BLBX), has signed non-binding agreements with AltynGroup Kazakhstan to pursue a long-term rare earth offtake and strategic investment partnership, linking Central Asian feedstock directly into North American processing at a moment when U.S. defense planners are growing increasingly uneasy about midstream supply risk. The agreements outline a 10-year offtake framework and a parallel, non-binding commitment of investment capital from AltynGroup that REalloys says…