T2 Metals Uncovers New Copper and Antimony Mineralization at Aurora Gold-Silver Project in Yukon’s Tombstone Belt

Aurora Project Location and Regional Importance

The Aurora Gold-Silver Project, owned by T2 Metals, covers 76 square kilometres in Yukon’s Dawson Mining District, one of the territory’s most active exploration zones. Initially staked by prominent Yukon prospector Shawn Ryan in 2004, the project lies within the Tombstone Gold Belt, described as "one of North America's most prolific gold regions" and part of the Tintina Gold Province.

Strategically positioned, Aurora is just 8 kilometres west of Prospector Metals' ML Project, where recent drilling announced on October 1, 2025, uncovered high-grade copper and gold mineralization. Both projects share similar geology and exploration potential. Additionally, the former Brewery Creek open-pit gold mine is located 30 kilometres south. Aurora has yielded high-grade gold from surface sampling and limited historic drilling but remains largely unexplored, offering significant upside.

Recent Discoveries of Mineralization During Field Work

T2 Metals’ exploration teams have completed geological mapping alongside rock and soil sampling, discovering new outcrops and rock float with semi-massive sulphide mineralization. Notably, a new semi-massive stibnite (antimony sulphide) outcrop was found 300 metres from the Antimony Mountain Prospect. Additionally, semi-massive sulphide mineralization with chalcopyrite visually estimated above 15% was identified in rock float 300 metres northeast of the Rainbow Prospect.

The company stresses that these mineralization observations are visual estimates and not substitutes for laboratory assays, which are pending. Mark Saxon, President and CEO of T2 Metals, stated the early summer exploration program has positioned the company well for further discoveries, with the newly identified highly mineralized samples underscoring the project’s strong potential beyond known gold zones.

Airborne Geophysics and Extensive Sampling Completed

An airborne LiDAR survey covering the Aurora Project at 10 points per metre sample spacing has been completed. Once processed, this data will refine the structural understanding of mineralization, identify intrusion-related targets, and assist with access planning for upcoming drilling. This geophysical work significantly enhances knowledge of the project's subsurface features.

Geological mapping and rock sampling have focused on priority drill targets where previous work identified gold, silver, and copper mineralization. To date, over 120 rock samples and 3,000 soil samples have been collected and submitted for assay across a 10 km by 5 km area. Soil and auger sampling is led by Callum Ryan, following protocols established by project vendor Shawn Ryan to maintain consistency with historical exploration.

Drill Site Preparation and Upcoming RAB Drilling Program

Drill site preparation is in progress ahead of a planned RAB (rotary air blast) drilling campaign set to begin in July or August 2026. This marks a significant escalation from surface exploration to drill testing at Aurora. Field teams have efficiently transitioned from mapping and sampling to developing drill-ready targets.

The drilling program aims to test newly discovered mineralization zones and validate the prospectivity of multiple exploration targets. Assay results from recent discoveries will inform drill site selection and priorities for the 2026 season.

Geological Setting and Reduced Intrusion-Related Gold System Context

The Aurora claims center on the Antimony Mountain Stock, part of the Tombstone Plutonic Suite intrusion, known for stibnite (antimony sulphide) veins discovered as early as 1916. Exploration has been sporadic since then. Shawn Ryan and previous explorers identified eight significant gold prospects along a 10-kilometre trend using soil and rock chip sampling.

The Tombstone Gold Belt features mid-Cretaceous, reduced felsic intrusions of the Tombstone Plutonic Suite, fostering major reduced intrusion-related gold systems (RIRGS). Gold mineralization here is typically linked with multi-element signatures including bismuth, tellurium, tungsten, arsenic, and antimony. The region hosts both high-grade vein systems and lower-grade bulk-tonnage deposits, with recent discoveries by Snowline Gold, Banyan Gold, and Sitka Gold.

Polymetallic Mineralization Indicative of RIRGS Footprint

The newly found semi-massive copper and antimony mineralization, associated with arsenopyrite and pyrite, aligns with the polymetallic signature typical of RIRGS in the district, potentially including skarn-related massive sulphide deposits. T2 Metals notes similarities in iron-oxide and jarosite alteration at Aurora and the nearby ML Project operated by Prospector Metals.

Sampling results reinforce the prospectivity of this part of the Dawson Mining District and support the presence of multiple, potentially related mineralization styles warranting drill testing in 2026. The discoveries and consistent alteration styles suggest additional exploration targets remain unidentified.

Historical Exploration and Project Development Timeline

Despite its potential, Aurora has undergone less than 3,000 metres of total drilling and had no exploration activity for over 15 years before T2 Metals’ involvement. A prior company announcement on February 26, 2026, detailed the project’s history and geology. The current program represents a major reactivation of exploration after this lengthy pause.

Shawn Ryan, Advisory Board member and original project discoverer, visited the site during current work programs. He remarked that although he has extensively explored the area before, it is encouraging to find new high-grade discoveries with the right alteration styles. He looks forward to the upcoming drilling following the long exploration hiatus.

Company Profile and Exploration Approach

T2 Metals Corp. is an emerging precious and critical strategic metals company focused on creating shareholder value through exploration and discovery. The company prioritizes respectful engagement with rights holders and stakeholders to ensure positive community contributions. The Aurora Project is a key asset within the Tombstone Gold Belt.

The completed work at Aurora forms part of T2 Metals’ Q3 and Q4 2026 multi-disciplinary field programs, announced on June 30, 2026. Their exploration strategy integrates traditional geological mapping and sampling with advanced geophysical techniques like LiDAR to identify and prioritize drill targets, reflecting modern best practices in early-stage precious metals exploration.

Qualified Person and Technical Oversight

Mark Saxon, President and CEO of T2 Metals, serves as the Qualified Person under National Instrument 43-101 standards. Saxon is a Fellow of the Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. He has reviewed and approved the news release content, providing technical oversight for the exploration program and disclosures.