### INVITATION TO TENDER - s22.q4cdn

Ball Mill (Existing) Vertimill Selected Mill Size 12'Ø x 12' EGL VTM 1250 Installed Mill Power (kW) 1000 930 Total Dry Solids Federate (tph) 136 136 % Critical Speed 69.7 N/A Specific Energy (kWh/t) 5.7 5.2 Media Charge (% Vol) 34 N/A Media Size (mm) 75 30 Expected Grinding Media Consumption (g/t) 550 - 600 300 - 400 Contact: