• Dakota Gold reported positive heap-leach metallurgical results for its Richmond Hill Oxide project, supporting a pre-feasibility study due in Q4 2026.
• Oxide column tests showed gold recoveries of 57.3% to 92%, averaging 74.2% across 12 tests.
• Modeled ultimate oxide recovery averaged 80.4% at 0.5-inch crush size versus 75.9% at 1-inch, guiding process design trade-offs.
• Testing flagged no major issues that could hinder heap-leach performance, including permeability, clay content, or preg-robbing behavior.
• Definition drilling started to upgrade high-recovery breccia-hosted oxide resources, targeting 11,000 meters in 2026-2027 ahead of a mid-2027 feasibility study.

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. Dakota Gold Corporation published the original content used to generate this news brief via Newsfile (Ref. ID: 202609101630NEWSFILECNPR____20260910_313768_1) on September 10, 2026, and is solely responsible for the information contained therein.