Mr Trump, however, views the minerals transaction with Ukraine as a fair way to recoup the billions of dollars that the US has given Kyiv - via weapons and financial support - to assist the armed forces in their fight against Russia's full-scale invasion over the past three years.
Meanwhile, Ukrainian officials have said Kyiv has agreed a framework for an economic deal with the US which will see them trade rights to rare minerals in exchange for continued aid.
A Ukrainian government source has also said Mr Zelenskyy will meet with Mr Trump in Washington on Friday and that the meeting was proposed by the American side.
There has been no confirmation from the US side yet but Donald Trump said on Monday evening that his Ukrainian counterpart "would like to sign the minerals deal with me".
Ukraine has agreed terms with the United States on a crucial minerals deal, a Ukrainian government source has told Sky News.
