#USA #VORTEX #Hycroft Mining #Winnemucca #Brimstone

Hycroft Mining Reports Significant Silver Discoveries at Brimstone and Vortex

WINNEMUCCA, NV, Aug. 18, 2026 - Hycroft Mining Holding Corporation (Nasdaq: HYMC) recently announced remarkable results from its 2025-2026 exploration drill program at the Hycroft Mine, located in one of the world's leading mining jurisdictions. The assay results from the Brimstone and Vortex areas have confirmed substantial high-grade silver deposits, encouraging further developments in the region.

Highlights of Recent Drill Results

Hycroft Mining has focused its drill program on expanding the high-grade silver systems at Brimstone and Vortex. Notable findings include:

• - At Brimstone, hole H26D-6169 intersected an impressive 82.7 meters at 87.52 grams per ton (g/t) silver, inclusive of 19.4 meters at 108.19 g/t silver and a remarkable 0.7 meters at 14.35 g/t gold.
• - The Vortex high-grade silver system was extended approximately 150 meters westward, with hole H26D-6088 returning 12.5 meters at 375.41 g/t silver, including a peak of 4.2 meters at 748.02 g/t silver.

The results signify not only the potential for high-grade mineralization but also the viability of establishing an underground mining operation due to the conducive conditions observed at both sites.

Strategic Developments

Diane Garrett, the Executive Chairman and CEO of Hycroft, stated, "Our ongoing drilling is elucidating the size, consistency, and growth prospects of the high-grade silver systems at Brimstone and Vortex. We are making strides towards bringing these systems closer to the surface and enhancing our understanding of the potential feeder structure within Brimstone. At Vortex, our expansion efforts continue to yield promising results, reinforcing our objective of developing a high-grade underground mining operation."

Continuing Exploration and Operations

Since the launch of the 2025-2026 Exploration Drill Program, Hycroft has drilled approximately 15,585 meters out of a planned 26,000 meters. Additional drilling is planned to reach further into the Brimstone system and the surrounding anomalies identified through past geophysical studies.

The overarching goal of the current program is to establish a clearer resource estimate for both Brimstone and Vortex. These recent findings will significantly inform ongoing operational strategies in the near future.

Summary

As Hycroft continues its efforts to expand and develop the silver-rich areas at Brimstone and Vortex, the latest drill results strongly emphasize the project's potential. With a solid financial structure and a strategic development plan, Hycroft is poised to maximize value for its shareholders while exploring these promising deposits.

For further updates about the Hycroft Mining operations, please visit Hycroft Mining's Official Website.