US $100 million plus cash flow
First Quantum SXEW plant rated for 25000 tons per day of ore
Grade - say 0.5 % is 11 lbs cu per ton
11 X 25000 equals 275,000 lbs per day copper production .
90% recovery is 247,500 copper production per day
Copper US $4 per lb X 247,500 is $990,000 cash flow per day
US $360 million per annum
Midnight Sun net interest say 30 % US $ 108 million