Argentina and the US have signed a critical minerals supply co-operation agreement.
The preliminary agreement seeks to promote trade and investment in critical mineral exploration, extraction, processing and refining.
"The goal is to increase awareness of investment opportunities and identify potential co-financing opportunities for critical mineral investments," they said.
The move is part of a US drive to become a major player in the critical minerals sector and reduce reliance on China.
Argentina has recognised copper, lithium and zinc mining potential.