REalloys (NASDAQ: ALOY) has announced a fully financed buildout of the largest heavy rare-earth metallization facility outside China, a project aimed squarely at one of the most fragile links in the Western defense supply chain just as Washington prepares to enforce its 2027 ban on Chinese-origin rare earth materials in U.S. weapons systems. The timing coincides with rapidly growing concern about supply availability. Chinese and Western media reports indicate Washington may have only two months of critical rare-earth inventories available for defense…