[@Dannyrulx]
Ah, Scheiße! A...we come in peace! Please point ze Rifles in a different direction, ja? 

Well, underwater mining would be still in its early concept and far less efficent then surface one, but with a lot of Experience in Geothermal work, i could see them having an edge in that matter! Also Greenland should have enough to mine in, with the ice-caps melted away