gold and copper prices only matter to producers and explorers...

gold and copper prices only matter to producers and explorers with advanced projects that will go into production within 12-24 months.

MAG is nowhere near that so prices are irrelevant. Having said that, prices can influence the animal spirits and drive the herd into paying multiples of what a company may be worth.
But gain, prices may go up another 20% however, if MAG does not expand the resource significantly then Myall will never be mined and therefore MAG SP will go nowhere.

Myall is in very early stages of exploration - it can go each way. Initial results are very encouraging and we have to see what next 15 holes deliver.