Cobalt Blue Holdings and Glomar Minerals have shortlisted four US sites and begun testwork for Project Infinity, aiming to build the first commercial polymetallic nodule refinery in the United States.
IperionX’s Titan Definitive Feasibility Study outlines a shovel-ready Tennessee project targeting heavy rare earths, titanium, zirconium, and hafnium with robust economics and strategic US supply chain implications.