OceanaGold Announces Ongoing Exploration Success at Haile

Executive Summary
- OceanaGold reported a series of high‑grade drill intercepts across multiple targets at its Haile operation, highlighting continued resource growth potential.
- Notable results include 28.9 m @ 18.33 g/t Au and 8.7 m @ 22.30 g/t Au in Ledbetter Phase 4 (conversion drilling), plus several >10 m intervals above 8 g/t Au at Horseshoe Underground.
- Early‑stage targets Pisces and Clydesdale also returned strong grades (e.g., 7.6 m @ 10.39 g/t Au at Pisces; 26.2 m @ 4.11 g/t Au with a sub‑interval of 14.6 m @ 6.21 g/t Au at Clydesdale), supporting future underground development plans.
Key Details
- Ledbetter Phase 4 – Conversion Drilling
- 28.9 m @ 18.33 g/t Au (DDH1279, from 489.1 m) – includes 1.3 m @ 189.22 g/t Au.
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8.7 m @ 22.30 g/t Au (DDH1281, from 375.9 m) – includes 5.0 m @ 35.86 g/t Au.
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Horseshoe Underground – Conversion Drilling
- 16.1 m @ 16.33 g/t Au (UGD0082, from 274.3 m).
- 14.6 m @ 10.33 g/t Au (UGD0084, from 235.6 m).
- 24.0 m @ 7.99 g/t Au (UGD0085, from 258.6 m).
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22.0 m @ 8.60 g/t Au (UGD0086, from 259.3 m).
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Horseshoe – Definition Drilling (ongoing, 2,600 m remaining in 2025)
- 7.6 m @ 3.63 g/t Au (UGD0097).
- 9.1 m @ 3.40 g/t Au (UGD0097).
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5.0 m @ 5.64 g/t Au (UGD0100).
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Pisces – Initial Drilling (early‑stage target)
- 7.6 m @ 10.39 g/t Au (DDH1271, from 647.0 m).
- 6.8 m @ 2.60 g/t Au (DDH1285, from 571.0 m).
- 6.6 m @ 3.34 g/t Au (DDH1290).
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Historic high‑grade intervals: 44.2 m @ 10.85 g/t Au (DDH1267) and 9.4 m @ 44.14 g/t Au (DDH1269).
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Clydesdale – Initial Drilling
- 26.2 m @ 4.11 g/t Au (DDH1282, from 780.7 m) – includes 14.6 m @ 6.21 g/t Au.
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Follow‑up drilling planned: two additional holes to reach a total of 1,800 m by year‑end.
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Program Scope
- Total Haile drilling to date (including February 2025 update): ~13,000 m across 70+ holes.
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Ongoing 2025 program targets an additional ~4,600 m at Horseshoe definition and further testing of Pisces & Clydesdale.
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Budget – Record exploration budget of $10 million allocated to Haile for 2025, cited by President/CEO Gerard Bond as delivering “excellent return on investment.”
Notable Quotes
“With a record high exploration budget of $10 million at Haile this year, we are delighted by the excellent return on investment we continue to generate through exploration. These exciting results continue to demonstrate the continuity of high‑grade mineralization… The exploration success continues to highlight the exceptional upside for low‑risk organic growth we have within our existing portfolio of assets.” – Gerard Bond, President & CEO
All technical data are presented as reported in the press release; intervals represent core length.