• Rio Tinto approved a $144 million investment to advance Arizona’s Resolution Copper project; its share is $79 million.
• The funding adds to approximately $500 million in preliminary spending announced with the land exchange completed in March 2026.
• Funds will support feasibility studies, final engineering and equipment purchases for underground development.
• The program also covers new water treatment facilities and ongoing exploration drilling.
• Resolution Copper is owned 55% by Rio Tinto and 45% by BHP.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Rio Tinto Ltd. published the original content used to generate this news brief via Business Wire (Ref. ID: 202611050800BIZWIRE_USPR_____20261105_BW436569) on November 05, 2026, and is solely responsible for the information contained therein.