Shares of Greenland Mines were up another 82.38% on Tuesday while Greenland Energy jumped 11%.after US President Donald Trump announced a security agreement involving the US, Denmark and Greenland.

The agreement gives the US "permanent control" over security and other needs in Greenland and prevents US adversaries from establishing military bases, maintaining a military presence or making sensitive investments without US approval, Trump said in a post on Truth Social.

Separately, Greenland Mines welcomed the agreement saying it reinforces the strategic importance of Greenland. The company has two major assets in Greenland, including the Sarfartoq rare earths project and Skaergaard palladium-platinum-gold and vanadium project.