Volodymyr Zelenskiy is heading to Washington Friday to sign a deal that will allow the US to tap into future revenue from the war-battered country’s natural resources.

The United States and Ukraine are trying to hammer out a natural resources agreement that would give Washington access to Kyiv’s untapped mineral riches in exchange for investments and what Ukraine hopes would be concrete security guarantees.

A Ukrainian official says Kyiv has agreed to the terms of a deal which would give the US access to mineral deposits.