Any US company that wants to could setup mining operations in greenland today, Denmark/Greenland would happily welcome the development.
The reason the USA wants to seize greenland is because it foresees a future where it is no longer allied with Europe, so in order to secure the resources and military access in the long term they are annexing it now since Europe is entirely incapable of stopping them at present, both politically and militarily.
Any US company that wants to could setup mining operations in greenland today, Denmark/Greenland would happily welcome the development.
The reason the USA wants to seize greenland is because it foresees a future where it is no longer allied with Europe, so in order to secure the resources and military access in the long term they are annexing it now since Europe is entirely incapable of stopping them at present, both politically and militarily.