Sappho Critical Minerals Target
America’s Antimony Push Gets a Pilot Plant. One Junior Is Already Finding More
The U.S. Army and Idaho National Laboratory opened a modular pilot plant in Idaho Falls built to process antimony, a mineral used in ammunition, batteries, and flame retardants that the United States currently gets almost entirely from China and Russia. A day earlier, a small New Brunswick company reported another round of high-grade antimony assays…

