NST SP will probably half this year with $183.2M revenue already generated out of 106K oz of gold.
This gives remaining 394K oz left to sell (500K oz midpoint)
394K oz at current AUD spot price is $1500, gives you about $600M future revenue.
Forward revenue target is: $600M + $183.2M = $783.2M
Well below estimates from analysts of about $900M revenue.