Ukraine said Thursday that it had signed the basis of a minerals deal with the U.S., although the details of the agreement are yet to be announced.

The signed memorandum of understanding was thin on details, and the White House did not comment. But President Trump has said he expects to sign a full minerals deal with Kyiv soon.

Kyiv said on Friday it aims to complete talks by the end of next week about a deal with Washington on jointly exploiting Ukrainian mineral resources, an agreement Ukrainian officials hope will go some way to firming up softening U.

President Trump’s envoy says the territories are key to resolving the war, but their status could in fact become a sticking point to any deal.

US Secretary of State Marco Rubio and Steve Witkoff, President Donald Trump’s international envoy, are set to meet Ukrainian officials in Paris at a summit Thursday aimed at bolstering Ukraine’s defenses against Russia’s unrelenting invasion.