1 Kilograms = 32.15075 Troy Ounces (for gold) = 32.15075 x $406/per ounce = $13,053 Excluding mining cost 1 kilo gold pure profit = 13,053 - 18,000 (cost) < 0 Not worth it. But wait for gold to hit 800 or 1200 per ounce in 2020, then sell.