at 3M, if we mined it all at 1000$ gold with a cost of 300$ per oz gives us 2B in profit.

with a current market cap of 1B we are able to support 2x our price over the next couple years.

...except that the ore is not mined instantly, but rather over a period of at least 12 years (3M oz /250 koz/y), and so the income must be discounted to the present value.