Moscow would be open to allowing U.S. access to Russia’s rare minerals, President Vladimir Putin said Monday, an apparent counteroffer and pressure tactic as the Trump administration pushes Ukraine to sign over half its mineral wealth as repayment for U.

It could also outmaneuver Putin, who this week floated a deal with the U.S. on Russian rare earth minerals which could be an effort to outbid Ukraine on this matter. Citing unnamed Ukrainian officials,