4,7000,000 ton x 0.006 (0.6% co) x A$60,000/t = AUD $1.7 bil worth of cobalt in the tailings plus copper credits of another A$200 mil. Plant built and ready to be commissioned, no need for mining. Plus the other 2 super high grade deposits to explore.
But my mama says if something sounds too good to be true it usually is...