Greenland Mines is trading 19.4% up now at $16.89 after the United States, Denmark and Greenland signed a September 22 security agreement strengthening Arctic cooperation and potentially reducing investment uncertainty. - Coverage linked the agreement to increased strategic importance for Greenland’s mineral projects; shares gained nearly 17% premarket on September 23. - Investor enthusiasm is also supported by an application for an additional 262-square-kilometer exploration license beside Sarfartoq, expanding the company’s potential rare-earth footprint.