Drill Results
Depth Extension Defined at Barry Deposit
Bonterra confirms deep gold extensions at the Barry deposit as its joint venture with Gold Fields advances.

Executive Summary
- Bonterra Resources announced the completion of its 2026 deep drilling program at the Barry deposit, confirming gold mineralization extending to depths of approximately 750 to 850 meters.
- All five deep drill holes intersected potential mineralization consistent with Zone H, delivering high-grade intercepts up to 17.75 g/t Au over 0.6 m.
- The program consisted of 14 diamond drill holes totaling 8,346 meters, with approximately 30% of assay results still pending.
- Ground gravimetry surveys were completed around the Windfall and Gladiator deposits.
- The company continues to advance its earn-in joint venture agreement with Gold Fields Limited, which holds the right to acquire a 70% interest by spending C$30 million by November 2026.
- The Barry deposit holds 1.63 Moz Measured & Indicated and 2.17 Moz Inferred resources, with a mining lease permitting 1.2 million tonnes of open pit and underground extraction.
Material Impact
- The June 4, 2026 release is a direct follow-up to the January 2026 announcement of the deep drilling program. The results confirm management's earlier guidance and the geological model, validating the depth extension without introducing unexpected surprises.
- High-grade intercepts and the confirmation of Zone H at depth support the existing resource estimates and enhance the long-term valuation of the Phoenix JV.
- The news is incremental and expected, aligning with the company's stated exploration objectives. It does not alter the strategic roadmap or the JV terms, but it reinforces the asset's potential ahead of Gold Fields' earn-in deadline.
- Financially, the completion of the program and pending assays will likely feed into future resource updates, but the immediate market impact is limited to routine positive sentiment.
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Company Overview
- Bonterra Resources is a junior gold explorer focused on the Abitibi Greenstone Belt in Northern Québec.
- The flagship asset is the Urban-Barry camp, divided into the 100% owned Desmaraisville South Project (Bachelor and Moroy deposits) and the Phoenix Joint Venture (Barry and Gladiator deposits) with Gold Fields.
- The company holds a strategic land package with existing infrastructure, including the fully permitted Bachelor Mill (expandable to 1,800 t/d) and a 3,400 t/d Windfall mill nearby.
- The Phoenix JV holds 1.63 Moz Measured & Indicated and 2.17 Moz Inferred gold resources, with historical production at Barry and significant exploration upside.
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Jun 03, 2026 · 16:31