how many ounces, page-15

Nabaru test results from two different methods of gravity recovery showed gold recoveries in excess of 90% (97% for the Knelson recovery which we are using).
In fact the Knelson test results were based on a grind to 113 micron and our latest update reported we were grinding down even further to 100 micron suggesting recoveries could potentially be higher than in tests. Gold down to 50microns is being recovered. How do you estimate so much gold lost to tailings considering the test results show up to 97% gold recovery?

“Consep Pty PL - Knelson Concentrator Test-Work for Gravity Recoverable Gold;
conventional crush and grind.
. 97.3% gold recovered using simple gravity methods in a two pass concentrate with:
• 73.4% in first pass 220 micron grind;
• 23.9% (cumulative to 97.3%) in second pass 113 micron grind.
. 15.1 kilograms of gold per tonne in concentrate product.
. Calculated head-grade from 30kg sample = 143g/t gold.”