Copper and lithium now anchor how Chile and the United States do business, from Rio Tinto deals to a March 2026 critical-minerals declaration under Kast.

Copper and lithium now anchor how Chile and the United States do business, from Rio Tinto deals to a March 2026 critical-minerals declaration under Kast.

Chile's new mining strategy offers lower taxes and faster permits, and a reactivated Argentina treaty ties about US$20.7 billion in copper investment.