Isn't mining anything in Greenland bloody hard given the arctic climate ? It kinda has so low population and small economy for a reason & I don't think global warming will measurably help with it.
Already Russia has been sending russians to compete in Texas and other rodeos to pick up anticipated skill sets when the tundra is replaced by rich grasslands.
Mining there has been repeatedly considered. It hadn’t happened mainly due to environmental concerns and politics, not practicality. For example, back in 2021 a left leaning party won elections there and pledged to block mining projects immediately:
The same article mentions that even at that time, a partnership between an Australian company (whose biggest shareholder is a Chinese company) and a Chinese company had already spent $100 million on preparing for a mining project, at this place:
