After months of tense negotiations, the U.S. and Ukraine have signed a deal that is expected to give Washington access to the country’s critical minerals and other natural resources.

Ukraine managed to wrangle some more favorable terms out of the United States before signing the long-awaited minerals deal on Wednesday.

After months of fraught negotiations, and a near total rupture of US support, Kyiv and Washington have finally signed a deal that gives US companies privileged access to Ukraine’s valuable mineral resources.