• Capstone Copper completed its acquisition of the San Pietro copper concessions in Chile’s Atacama Region, adding about 16,000 hectares.
• Transaction consolidates its Mantoverde-Santo Domingo district footprint, positioning San Pietro between Mantoverde, Santo Domingo, and Sierra Norte.
• Consideration totaled USD 25 million, paid in Capstone shares issued to New Golden Exploration Chile.
• San Pietro hosts an NI 43-101 Inferred Mineral Resource of 492 million tonnes grading 0.23% copper and 0.05 g/t gold.

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. Capstone Copper Corporation published the original content used to generate this news brief via Business Wire (Ref. ID: 20260831848151) on August 31, 2026, and is solely responsible for the information contained therein.