EMA REE Project Achieves Breakthrough in Environmental Restoration

Washing following ISR has successfully re-balanced the clay chemistry,

returning the system to its natural, pre-leach conditions

Highlights

· Successful return of pH to baseline values after in-situ leaching (ISR) field trial operation reaching akey environmental and regulatory milestone

· Magnesium reduced to natural background levels following controlled water washing

· Aluminium and Iron concentrations reduced to zero levels

· >90% recovery of magnesium ions allowing for lixiviant recycling and recovery reducing operating costs

· Sulphur values in the form of sulphate (SO4) show no net accumulation in the residual clays

· Clays successfully neutralised and stabilised post leaching confirms the ability to return the clays pH, conductivity, and ion balance back to baseline levels

Completion of the restoration phase marks the final stage of field trials, delivering positive results that support regulatory approvals and advance the Ema ISR project