boliden play, page-10

""""But they would have to move soon because currently AOH are mining it away for effectively zero net profit. Every year AOH remain in charge of it they are destroying the NPV for someone like Boliden.""""

I was thinking of that when I made my NPV comment. You have spelt it out clearly. The resource will be depleting and and if the are not making any profit (or just marginal profits) but incurring capital expenditure, there will be no returns to shareholders.
I don't think that upfront capex and increasing the mine life will generate significant revenue in NPV terms.

The Annual Report states:

""""It is anticipated that capital expenditure will continue at elevated levels at Outokumpu for up to two years before reducing sharply for the balance of mine life.""