• Mackay Gold & Silver began a 20,000-meter drill program at its 100%-owned Comstock District property in Nevada.
• Phase 1 targets the underexplored Occidental-Brunswick Lode, including near-surface oxide gold-silver mineralization at Occidental South.
• Program outlines about 15,000 meters of RC drilling now underway, with 5,000 meters of core drilling slated for early August.
• First assay results are expected in late summer, with drilling planned for 80 to 100 holes and capacity to expand.
• Deeper holes aim to test a historic Sutro Tunnel intersection reported as a 30-meter lode interval near 450 meters depth.

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. Mackay Gold & Silver Corp. published the original content used to generate this news brief via Newsfile (Ref. ID: 202606290800NEWSFILECNPR____20260629_303223_1) on June 29, 2026, and is solely responsible for the information contained therein.