Mount Ridley Mines appears to have delivered a metallurgical knockout punch with its in-house developed leach technology achieving recoveries for a suite of critical minerals that more than double those of the industry-standard hydrochloric acid leach (HCL) process. Notably, Mount Ridley’s Selectro leach process recovered an average of 56 per cent of gallium while the conventional HCL process recovered zero. Rounding out the trifecta of results, scandium recovery hit a massive 80 per cent - a figure that dwarfs the 25 per cent achieved using the standard HCL method. Importantly, Mount Ridley says all three critical mineral streams HREEs, scandium and gallium can be recovered through a single proprietary leach circuit. With its proprietary Selectro process Mount Ridley might potentially be on the path to becoming a multi-commodity critical minerals producer.