Investorideas.com - #Metals / #GreenEnergy News: Defense Metals (TSX-V: $DEFN.V) (OTCQB: $DFMTF) Pre-Pilot Hydrometallurgy Achieves High Impurity Removal With Minimal Rare Earth Element Losses From Wicheeda Flotation Concentrate; @DefenseMetals : vimarsana.com