New structure opens up 10 kilometres of potential strike length along the Mishibishu Deformation Zone; 2026 drilling will focus on validating new interpretation and identifying similar structures across the land package

TORONTO, Dec. 15, 2025 (GLOBE NEWSWIRE) — Wesdome Gold Mines Ltd. (TSX:WDO, OTCQX:WDOFF) (“Wesdome” or the “Company”) today provides an update on its surface exploration activities at its wholly-owned Eagle River mine (“Eagle River”) near Wawa, Ontario, Canada.

Anthea Bath, President and Chief Executive Officer, commented,

“The extensive work undertaken on Eagle River’s regional targets has yielded encouraging results, including a new interpretation at Mishi and Magnacon that opens up 10 kilometres of potential strike length for exploration along the Mishibishu Deformation Zone.

“Long-term target generation at Eagle River has taken a major step forward this year, powered by the detailed structural mapping program we launched in mid-2024.

“We’re now seeing that systematic groundwork is beginning to pay off, reshaping how we approach exploration across several key targets. Underground, our team has been fully committed to the first phase of global model drilling, and the results to date are validating our early interpretations.

“We remain on track to finish this phase ahead of the drilling cutoff for the year-end technical report. With everything coming together, momentum is building and we’re excited to carry it into an expanded regional exploration program next year.”

.

HIGHLIGHTS

Mishi Zone 
Drilling extends strike length and confirms potential for depth extensions

• Hole MSH-2025-024: 6.4 g/t Au uncapped over 2.5 m core length (6.4 g/t Au capped, 2.3 m true width) and,
  • 8.3 g/t Au uncapped over 4.7 m core length (8.3 g/t Au capped, 4.5 m true width) including,
    • 16.3 g/t Au uncapped over 1.0 m core length
    • 18.3 g/t Au uncapped over 0.8 m core length.

.

.