One hole hit a long, high-grade gold-silver interval from near surface, returning 67.6 metres of 3.63 g/t gold and 132.83 g/t silver starting at 51 metres.
The Economic Community of West African States Court found Guinea responsible for the killing of six villagers and the wrongful arrest, injury or torture of 15 others at a 2012 protest.
The new optimizer stabilizes the effect of upstream process variations, provides tools for improved process control and reduces the need for manual intervention.