"The way this case is going to be solved - whether it's in our favor or not - is going to dictate the view and the attitude of foreign investments into Greenland going forward," Mamadou said.
The company's shares saw a significant boost following Trump's comments but remain far below levels seen before the enactment of the uranium law.
The timing of Mamadou's visit to Greenland during the election campaign was a coincidence, he said.
Energy Transition Minerals, with China's Shenghe Resources holding 7% as its largest shareholder, is prepared to supply a supply chain outside China within the next three to five years, Mamadou said.