Hemlo Mining Corp. has intersected 89.89 g/t gold over 3.0 metres within the South-Rim Zone at the Hemlo Gold Mine near Marathon, Ontario.

Additional high-grade assay results include 14.81 g/t gold over 10.0 metres in hole 6702632 and 12.97 g/t gold over 7.0 metres in hole 6702615. The 2026 drilling campaign has defined roughly 500 metres of high-grade mineralization across the 1.5-kilometre South-Rim Zone, leaving about one kilometre of strike length to test.

The South-Rim structure sits 50 to 150 metres from active C-Zone mining and underground infrastructure, offering a pathway to near-term, low-capital resource growth. At its upper extent, the zone projects toward the open-pit resource shell, supporting potential underground and open-pit expansion.

This drilling is part of a 130,000-metre exploration program launched in January 2026. Approximately 75,000 metres are complete across resource conversion, high-definition, and growth programs. The Hemlo Gold Mine was acquired in November 2025 and has produced roughly 25 million ounces of gold since 1985.

"South-Rim is rapidly emerging as one of the most exciting near-mine growth opportunities at Hemlo. Since our initial results announced on May 14th, drilling has continued to deliver strong grades and meaningful widths where predicted, including 89.9 g/t Au over 3.0 metres and 14.8 g/t Au over 10.0 metres. We have now demonstrated approximately 500 metres of high-grade mineralization within the interpreted 1.5-kilometre zone, with substantial additional extent remaining to be tested. Its location, only 50 to 150 metres from active C-Zone mining, creates a potential pathway to low-capital resource growth. Based on the strength of the results, we have expanded the program and added Conversion drilling to potentially advance portions of the zone toward Indicated classification. South-Rim remains open and is expected to be an important contributor to our comprehensive Mineral Resource and Mineral Reserve update targeted for the second half of 2027."

— Jason Kosec, President, CEO & Director

Hemlo Mining has expanded the drill program and added conversion drilling to potentially advance portions of the zone toward Indicated classification. Additional assay results from South-Rim and active exploration areas, including the A-, B-, C-, D- and E-Zones, are expected over the coming months. The company targets a comprehensive Mineral Resource and Mineral Reserve update in the second half of 2027.

Read the full announcement: Hemlo Mining Corp. Intersects 89.9 g/t Au over 3.0 Metres at South-Rim, Further Defining High-Grade Mineralization Adjacent to C-Zone