Mackay Gold & Silver Kicks-off Inaugural 20,000 Metre Program with Drilling Now Underway at the Comstock District, Nevada

Mackay Gold & Silver Corp. has officially commenced its inaugural 20,000-metre drill program at its 100%-owned Comstock District property in Nevada. The initiative targets the Occidental-Brunswick Lode, focusing on shallow oxide gold-silver mineralization at Occidental South and deeper projections near the historic Sutro Dewatering Tunnel.

The Reverse Circulation (RC) drill rig arrived on June 17, 2026, and is currently active, with the core drill rig scheduled for early August 2026. First assay results are projected for late summer 2026. The program consists of approximately 15,000 metres of RC drilling and 5,000 metres of diamond core drilling across 80 to 100 holes. This follows the June 22, 2026 acquisition of Comstock Inc.'s assets, which consolidated the district's major vein systems and added historical resources at Lucerne and Dayton deposits.

Mackay Gold & Silver Corp. (MACK) has begun drilling, a routine execution step following the detailed exploration plan outlined on May 19, 2026, and the land consolidation announced on June 22, 2026. The market was already aware of the planned 20,000-metre program and the June start date, making the news incremental and expected.

The focus on testing depth projections near the Sutro Dewatering Tunnel adds a new geological dimension to the Occidental-Brunswick Lode, potentially unlocking deeper, higher-grade mineralization if successful. No new financial or operational surprises are present; the company remains on schedule with its 2026 exploration roadmap.

Mackay Gold & Silver Corp. is a gold and silver exploration company focused on the Comstock District in Nevada, one of America's richest historic mining districts. The company’s flagship project is the Comstock District, which now spans 4,343 hectares following the acquisition of Comstock Inc.'s assets. Mackay Gold & Silver aims to build a multi-million ounce gold equivalent resource base, targeting a path to over 5 million ounces AuEq.

The project includes historical oxide deposits at Lucerne and Dayton, as well as the Occidental-Brunswick Lode, which management believes has been down-dropped by post-mineral faulting, placing richer portions at depth. Additionally, the company controls the permitted American Flats processing facility, capable of processing 4,500 tonnes per day.