Mining Americas Begins Underground Development at Copperstone Gold Project

• Mining Americas began underground rehabilitation and development at Copperstone, where construction is underway following a positive board decision in May 2026.
• Initial Copperstone open-pit resource estimates and updated Gold Rock resource estimates are planned for the fourth quarter.
• Gold Rock road upgrades are largely complete, with heap leach pad liners ordered ahead of planned stacking and leaching in 2027.
• Cerro de Oro targets an updated resource estimate in the first half of 2027, followed by a second-half prefeasibility study before potential construction.
• Santana secured new water rights, reducing restart risks; mining and leaching remain suspended pending permits to expand the heap leach area.

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. Mining Americas Inc. published the original content used to generate this news brief via Newsfile (Ref. ID: 202611091630NEWSFILECNPR____20261109_323189_1) on November 09, 2026, and is solely responsible for the information contained therein.