SGS Metallurgy has completed a six-month testing and optimisation program of Alumtek Minerals’ proprietary technical process. The purpose of the program was to further optimise the extraction of critical minerals from bauxite residue as well as to “close the loop” on the process as much as possible i.e., to also maximise the extraction of saleable by-products and to render the subsequent residue – Activated Bauxite – suitable for beneficial re-use. The testing program was highly successful. This process, known as AM Process No. 17, has confirmed the ability to produce commercial quantities of hafnium, lithium, niobium, scandium, titanium, vanadium, zirconium, along with saleable by-products and neutralised, re-useable waste in the form of Activated Bauxite.